Alpha - Cameracraft

Sony Alpha 7R – the Swiss Army Knife camera

Posted on April 28, 2014 By David Kilpatrick

I guess it’s time to publish another field test review of the Alpha 7R despite rarely having used the camera in anger, or in any state other than anger. It arrived in late November and caught me at a time when I was not going anywhere or doing anything, nothing was happening and the weather was just plain ordinary. We didn’t have floods, or snow, or anything else like the rest of the country. It also came with a set of problems to be solved some of which turned out to frustrate any affordable solution.

I started writing this page in February 2014. It may give you some idea of my issues with the whole current Sony system that I’ve taken almost until May to publish it. Additions have been made on December 2nd 2014.

When you’ve got a wonderful new tool to work with, it doesn’t help to have no work to do which requires that tool. This really is the Swiss Army Knife camera, a strapline I used on the first issue of the new-look f2 Freelance Photographer magazine which I took back into ownership at the end of January. The A7R has the potential to fit in my pocket and replace every single other camera I own, to use all the lenses I have bought for all other systems and formats, and to remove stones from horses’ hooves.

But, and here’s the problem, it also replaces nothing at all as well as it could. There are maybe no more than half a dozen reasons why, but they are critical reasons and any one of these reasons will limit the use of the A7R.

No in-body stabilisation and not all lenses are stabilised
No electronic first curtain means the shutter cycle is noisy and causes vibration see later comments
The sensor design prevents optimum use of rangefinder type lenses under 35mm focal length
No native full frame wide-angle lens under 24mm is likely to be available before September 2014
Any Sony FE-mount lens with a performance matched to the sensor is going to cost double its true value
No on-board GPS and (to date) no multi-function shoe GPS module to add
Single card slot only and consumer size lith-ion battery
Very slow start-up and wake up from sleep especially when not using Program, Manual or intelligent fully auto modes
Slow optimal AF/AE performance continuous shooting
Slow laminar shutter blade transit speed and flash synchronisation limit
Firmware compatibility problems with some existing E-mount OSS lenses
No provision for IPTC copyright information entry
Custom lens app can be used with manual adapted lenses but does not embed metadata in EXIF
User memory settings don’t cover functions from some menus
Apps are charged at additional cost for functions which would reasonably be free or included in a camera body with a price-tag of £1,800
No battery charger is supplied and default charging method is by micro USB cable
The rear LCD screen can only be tilted and is not reversible to face the body
The EVF even at its brightest is not up to tropical or desert viewing conditions
Auto switching EVF to rear screen is unreliable
As I have now found after five months’ use, not as durable as it looks (I have repaired the worn metal showing through the sharp edges on the ‘prism’ and body with a black Sharpie pen, but I’m tempted to use a guitar fret polishing sheet to make all the sharp edges into bright silver… just rub that thin black coating off!)

In case you’re thinking this is a completely unfair list of negative points to start a review with, well, you may be right. It’s here to make up for the usual lists of star features which *end* reviews. I’m also going to need to explain all these points. Here, to balance the negatives, are the positives.

The highest resolution full-frame sensor (24 x 36mm) currently made
The smallest full-frame system camera body
No moving mirror, no SLT mirror, and no optical low-pass (anti-aliasing) filter
18mm lens mount register allows the use with adaptors of all current and past lenses from all systems designed to cover 24 x 36mm except those which used fixed rear assemblies and front groups
Custom lens app allows corrections for any lens, while built-in function auto corrects E and FE mount lenses
WiFi and Nearfield Connection transfer file to mobile devices or other hosts with automatic small JPEG creation even when full size JPEG or RAW is the selected shooting format
Sony PlayMemories Mobile Apps downloadable to camera and devices add functions such as remote control and intervalometer, lens corrections, sensor shading and colour shift compensation
The shutter is a professional specification speeded to 1/8,000th with motorized actuation
The body is reasonably rugged, very light magnesium with some composite surface panels and is sealed against everyday dust and moisture ingress
Although you can’t hear any sound, it has an Olympus-style ultrasonic vibration dust removal process and it is stunningly effective – no big buzz, no vibrational you can feel, but it really works
A full set of buttons can be customised for functions, and there are three adjustment controllers plus a dedicated exposure compensation dial
The electronic viewfinder with 2.3 million pixels and a 0.70X virtual view is only beaten by Fuji’s X-T1
Triggered or manual magnified manual focus allows exceptional focusing accuracy when needed
The high cost of Sony dedicated lenses is offset by the quality of many low-cost, older manual lenses and the option of two adaptors for Sony A-mount lenses, SLT mirror type or mirrorless
The interface allows manual selection of most functions, including APS-C format crop or using full frame with non-FF lenses, movie audio gain, finder/screen exposure simulation, and lens corrections

This last point may seem a bit vague but it’s actually what makes the A7R usable at all in many circumstances. The APS-C crop on/off has saved the camera from having zero real wide-angle choice during its first three months of release, as our December 2013 article on the use of the Sony E 10-18mm lens showed.

Although electronic viewfinder cameras are not ideal for studio work, the high resolution of the A7R makes it an alternative to medium format for the highest quality. It can be set to ISO 50 or 100, with 14-bit raw files using a compression method which is comparable to Nikon’s lossless option. If ‘Setting Effect Off’ is selected, the EVF or screen will always show a bright auto white balanced image allowing modelling lights to be used for composing and focusing even when the actual shot will be taken by flash with a fixed preset WB. The professional or advanced user will want to have all the settings for such work stored as a custom memory preset, but Sony puts the ‘Setting Effect’ outside the saved functions. This is most frustrating as getting to it requires menu-diving.

The same applies to stabilisation, which is a function of the lenses not the camera. It is turned on or off through a menu setting or by assigning a Custom button for direct access, making occasional tripod work need an excursion into the menus before and after, unless you are to end up with OSS enabled or disabled inappropriately. The E/FE lenses have no OSS switch, the body has no switch, and there’s no one-press shortcut. Sony’s decision to omit M/AF and OSS on-off switches from the FE lenses makes the system just that little bit harder to work with. Buy a Canon or Nikon and even the cheapest lens has a stabilisation switch you can use easily every time you mount the camera on a tripod, work with flash, or use a fast shutter speed and want the optimum lens performance (achieved, almost invariably, with stabilisation off).

No in-body stabilisation is going to handle this anyway – luck, flash, a tripod or a very fast shutter speed provide the answers

Working speed

How much does ANY of this matter, if you simply fit the appropriate kit lens or prime, and just get out and use the camera? Not a great deal if you use the camera like a point-and-shoot and your objective is a small print or posting on Facebook. Given the remarks I’ve seen on-line from people buying an A7R with a view to catching their ‘toddler running around’, plenty of new owners fall into this category. They are lucky because no matter what camera they buy, from a £50 supermarket offer to a Canon EOS 1DX, they will be happy with the results and only criticise them when the family pet outpaces the autofocus in the ideal photographic conditions of their living room.

The main issue which will hit any user of the A7R is its overall operating response and speed. Acquiring focus, by contrast detection, normally seems to take around 1/4 second with an FE or E lens, but can take half to one second in low light or with a low contrast subject. It can also fail but confirm positive occasionally, and this is a little frustrating as we are not used to getting defocused snaps today. Even one fail in a hundred is a surprise. If you try the LA-EA3 adaptor, which provides a mirror-free light path and supports AF with SAM and SSM lenses, half to one second is normal in good light. You may find it worth disabling the ‘AF with shutter’ option and using only the AF button to set the focus, so the shutter release does not keep resetting it with each shot. However, after doing this I found it more than inconvenient NOT to have the familiar AF on half-pressure.

The shutter cycle

Having acquired focus, you complete the shutter release action. The A7R then executes a pre-exposure shutter action which involves closing the shutter with a movement of both blinds. This takes 250ms, or one-quarter of a second. That is longer than the mirror lift timing of a DSLR. After the exposure is made (a minimum period of about 6ms) there is short blackout dwell and the shutter re-opens to restore live view. The complete cycle is between 375 and 385ms as timed using audio and video recording and analysis.

This is not so very much worse overall than the Alpha 99 full frame SLT used with mechanical first curtain, but more of the cycle happens before the exposure, creating a surprisingly long shutter release lag. The A99, like the A77 and NEX-7, NEX-6, A6000 and indeed most other new Sony models including the A7, can use Electronic First Curtain. This means no mechanical action happens before the exposure at all. By the time you see any blackout or hear any noise, the image has already been captured, silently; the second shutter curtain closes to end the exposure and allow electronic readout. The shutter lag with an Alpha 99 or A7 in this mode is 20ms, or 1/50th. The shutter lag with the A7R can not be reduced to less than 1/4 in single shot mode.

This is also why the regular continuous shooting offers only 1.5fps, with AF and AE supported for each individual frame and 14-bit raw data. If you set Speed Priority mode, you can get between 4 and 5fps at the most with the exposure locked but AF active – however, you don’t get a real time viewfinder display, and you also get 12-bit recording instead of 14. This lowers JPEG quality in-camera as well as the headroom and dynamic range of the raw file. You’ll only get this performance by using the best SD cards. Some which claim 90-95Mbps speed only write are half or less, and are quoting their read speed.

The A7R will often remain in a card-writing state for several seconds (as long as 16 seconds if a raw sequence has been shot and buffering is queuing the images). Playback or review is not always possible without a brief wait. Since turning off auto review (which is not subject to this wait) greatly improves EVF performance for rapid fire shooting, you may have no clear idea of your shots until well after they are captured.

The simple fact is that where many competitors including Sony’s own A7 have fast responses, the A7R has an operating speed closer to a 1970s film SLR with ‘auto winder’ (the slow alternative to a motor drive), or being more charitable, to a Mamiya 645 with a power winder. It’s essentially medium format operating speed. This is in contrast to the Nikon D800/E, which offers the same file quality without a speed penalty.

Sensor shading and lenses

The A7R sensor microlens and coating structure produces not only a strong magenta-purple shading towards the frame ends with short rear focus wide angle rangefinder lenses, it also throws up a yellow-orange discolouration at the top of the (horizontal) frame. It shows some degree of this effect with nearly all lenses under 40mm focal length made for Leica M, screw, Contax G or similar mounts.

A month after releasing the camera, Sony issued a PlayMemories App which can be loaded up and invoked to record and re-use manually adjusted corrections for named lenses. These include distortion (barrel or pincushion), vignetting, and colour shading. The app does not allow the creation of a reference image or mapping mask. You can do this for Lightroom (shading only, saved as data) or Capture One Pro (shading and colour, dust and defects saved as an image). Consequently it actually won’t correct properly as it ignores the yellow-orange patch. Its limits are insufficient to correct full fisheye to normal (as found in the onboard correction which Nikon use for their 10.5mm lens) or handle typical shading from lenses like the Voigtlander 12mm, 15mm and 21mm.

This is typical of a non-retrofocus wide angle shading map produced from the A7R. The slightly magenta vignetting can be cured easily. The piss-yellow patch can not and it’s there, to one degree or another, with more lenses than you would imagine.

A different aspect of the sensor construction produces smearing. I noticed that this was minimal with the 15mm Voigtlander and strong with the 21mm. It seems to depend on the rear group geometry relative to the sensor. I ended up selling both these lenses.

Since then, I have given up on the idea of a super-compact Leica style outfit though I still have a 40mm f/1.4 Voigtlander and an 85mm f/4 Zeiss. Sony’s FE lenses are not very small and not all that attractive in specification. They do little more than return me to the kind of lens choices I had thirty years with the launch of the Minolta AF system – a slight step backwards at the time, losing the 17mm f/4 option, 24mm VFC, 35mm VFC Shift, Varisoft and many other unique bits of glass. I’m using a bunch of vintage Pentax, Minolta, Canon and other lenses in the 17mm to 85mm range. They don’t suffer from sensor shading or smearing problems and have generally proved far better than modern zooms.

My gripe with these solutions is that even if I enter a lens identity in the App, my images show no focal length data in the EXIF info, and certainly no aperture data. At the end of a long day, I have not made notes on every change of lenses. I have no idea what lens or settings may have produced a good or bad result. What I need is for every lens to be a properly dedicated FE mount one whether AF or manual focus. And I don’t want to pay Carl Zeiss a thousand pounds to get a sharp result from the type of lens and aperture specification which has been easy to make to an outstanding performance level, at modest cost, for the last half-century.

There are three lenses made by Sigma – 19mm, 30mm and 60mm f/2.8 designs in E-mount – which prove it is possible to make low cost, lightweight lenses which deliver results almost beyond criticism. Just making the direct translation of these lenses to 28mm, 45mm and 90mm f/2.8 for (say) 50% extra cost would give the A7R exactly the kind of glass it needed from the launch day. Sony’s Carl Zeiss 35mm f/2.8 and 55mm f/1.8 may be wonderful in their own right but they appeal to me as much as 35mm f/2.8 lenses and 55mm f/1.8 lenses did back in the 1970s. Not at all. They are the focal lengths and apertures you used to find on twin-lens film compacts and they’re what you still find in the scruffiest old bag of 1960s worn-out SLR kit at a junk sale. They are what my father’s Pentax kit had (plus the inevitable 135mm).

Fuji’s launch of the X-series with a fast 28mm pancake equivalent (18mm f/2), very fast 50mm equivalent (35mm f/1.4), and good 90mm equivalent macro (60mm f/2.4) paid off well and they followed up with a 14mm f/2.8 (21mm equivalent) and pro portrait 56mm f/1.2. Though not cheap, these lenses are all affordable and have been supplemented by further excellent kit, tele and wide-angle zooms. What the A7/R needs most is a direct counterpart to this Fuji system and it simply doesn’t have it.

As for the long end, I see almost no point in buying any lens made for the FE mount longer than something like 100mm. The 70-200mm f/4 may be attractive, but it’s forever limited to the FE mount while being as long as a regular Alpha lens. Had Sony made a clever two-part SSM lens for FE and Alpha, with a detachable rear tube like a dedicated LA-EA3, they would have had a winner. Instead they have the lens which Alpha A-mount owners have been waiting for – pressing for ever since the digital system arrived – made in the new mirrorless mount only. After seeing the final prices of the CZ 24-70mm f/4 and the Sony 70-200mm f/4 G, I’ve bought an LE-EA4 Alpha SLT adaptor as well as an LE-EA3 mirror-free adaptor.

But longer lenses are still much better on the Alpha mount, with its sensor based stabilisation and the larger bodies with true phase detection AF ideally suited to the wildlife, action, news and sports for which lenses over 200mm are destined. You can add an LA-EA4 SLT type adaptor to the A7/R, but these are still full-frame cameras one of which (the A7) has extremely low resolution for tele work compared to the ultimate telephoto capture machine, the neglected Alpha 77 (or its lesser spec 24 megapixel siblings).

From my point of view I’ve got an amazing camera body with a few limitations, but a menagerie of odd lenses all with even greater limitations or lack of connectivity. If someone came out with a Canon FD lens adaptor with a chip able to tell the camera I was using a 20mm and what aperture was set, that would be great.

What does work is any LA-EA adaptor with Alpha lenses. You get all the EXIF data, and aperture control from the body. What you don’t get is the smooth focusing of a manual lens, or contrast detect AF, though you do have AF calibration to fix the inevitable inaccuracy of phase detect systems. It’s just a pity the 20mm Minolta/Sony AF design isn’t as good as the 1980s Canon last version manual focus FDn.

Timing and shake

The A7R shutter is a full size mechanism. A shutter like this running at 1/8,000th maximum speed should be achieving flash synchronisation at 1/250th. The fact that this camera is restricted to 1/160th shows that the transit speed of the shutter blinds is slower than normal. There must be a reason, and the discovery (by me, and others, despite vehement denials in some quarters) that a shock-induced form of camera shake happens could be it. Sony has also disabled OSS support for many E-mount lenses. I believe this is connected to the typical shake pattern in the hands of the average user. Update: because it occurs less with unstabilised lenses, for example my 70-210mm f/4 Minolta AF used on LA-EA4 shows none of the typical patterns, I now think this is not a ‘shutter shock’ or ‘user shake’ issue but is due either to mistimed communication between the camera and most stabilised lenes, or more likely, to a brief loss of the power needed to maintain moving lens groups or elements in position whether stabilisation is active or not. A need to moderate the drain on the battery is indicated by the slow transit of the curtains (slow motor speed to operate the shutter). Otherwise the A7R would surely have had a full speed 1/8000th shutter with X at 1/250th.

I made recordings using video, audio and motion sensing methods and observed the typical results from repeated exposures with different lenses. I found that shutter speeds from 1/30th to 1/160th could be affected by a shake or double image which occurs 1/250th after the shutter has opened, looking like a reflected or transmitted shock. At speeds longer than 1/60th this jolt occupies less than a quarter of the overall exposure and is not so clearly visible as a double image. It can look worse at 1/160th than 1/80th, because at 1/160th about half the exposure can be in one position and half with the image shifted a tiny degree. A distinct double image is often shown and it’s always in the vertical direction when the camera is held horizontally.

FE 28-70mm handheld 1/80th, OSS switched on (100% detail click to enlarge). Pre-update firmware. It’s very hard to be sure, but I think the April firmware update has made the 28-70mm (originally NOT recommended for the A7R or sold with the body) perform better.

FE 28-70mm handheld 1/80th, OSS switched off.

Sigma 70-300mm OS switched on, on LA-EA3 adaptor. One problem with using any non-Sony lenses is that firmware updates have no effect on them at all. Sony don’t make a stabilised lens going as long as 300mm, yet.

Sigma 70-300mm OS switched off. All images at 70mm (many tests made, these are accurate representations of the results and tend to show that stabilisation is likely to produce no benefit).

Since some stabilised lenses including my Tamron 18-200mm Di III VC also produced this distinctive double exposure, I believe that Sony’s disabling of OSS in the 55-210mm E lens for example was done because their engineers identified the problem before the camera went on sale. I also think it can be fixed by firmware updates to Sony E lenses, but probably not for others. Update: they did not update the new black 55-210mm OSS. I think it just imposes too much battery load without an entirely redesigned OSS mechanism, or perhaps a combination of OSS and focus. Fuji has overcome this problem using very carefully balance triple linear motors in their new large lens for the X-system, the 50-140mm f/2.8 – it’s a stabilised, fast focusing lens with minimum power consumption.

In response to those who say oh, it’s a super-high resolution camera, your technique needs to be (bla bla bla!) it’s actually slightly lower resolution than my NEX-5n and far lower than my Alpha 77 or the NEX-7 I no longer have. It’s also lower than the A3000 I owned briefly, and the NEX-6 I have used as a second camera since early March. 36 megapixels full frame is 15 megapixels APS-C and that’s a lower resolution than any E-mount camera made except the original NEX-5 and NEX-3 14 megapixel bodies. I can enable mechanical first shutter curtain on any other NEX or Alpha SLT body and never see the same ‘jolted exposure’ effect with the same lenses. I can also shoot with our Alpha 700, 900 and 580 bodies and never see this shake fingerprint despite their mirror mechanism and mechanical first curtain combined.

Of course I may get shake with disabled or absent stabilisation, hand-held, with almost any digital body. I use many different cameras through the year and sometimes I get very poor stabilisation, as when using certain Nikon lenses with the earlier VR zooms on their 24 megapixel DX format bodies. This shake is random and variable, and reflects my own instability, body sway, wind chill and so on. It’s not one type of shake visible too often in shots which should not normally be affected.

Reviewers have been incredibly cautious to observe this effect. I don’t know why. I’d spotted it within a few hours of trying the camera out. Others have been fast to defend the A7R and suggest that you just need to avoid that critical shutter speed range of 1/60th-1/160th. If this was not such an extremely useful speed range that would be fine. It’s actually the precise range you most want to be perfectly stabilised and least want to have to avoid. It’s also favoured by Sony when program mode and auto ISO are used.

One way to minimise this shake seems to be to use manual focus, mechanical lenses and to favour short focal lengths. The A7R never feels or handles better than when you’ve got a rangefinder lens in the range from 12mm to 28mm fitted. It becomes like the Leica that never was, the eye-level camera which doesn’t need a separate viewfinder to handle a 12mm, 15mm, 18mm, 21mm or 24mm lens. Leica may have a good rear screen to help with this issue now but no EVF. So the next point has been a big issue for buyers.

For the latest firmware updates, and new Apps and software, see:

http://www.sony.co.uk/support/en/product/ILCE-7R

And for the rest…

While I do miss the dual card slots of most of the Alpha cameras I’m using, I know the NEX and E-mount models have never had this, and with a 32GB card installed I have adapted to using the USB cable to read off new images and let the A7R charge. I do not miss the separate battery charger as I have one, and spare batteries. Nearly all the time, the camera is kept fully charged by its time spent overnight attached to the Mac. Since my RX100, RX10 and NEX-6 all work the same way using the same cable life has been simplified.

My favourite designs remain the A55, A77 and A99 all of which have had GPS on board and rear screens which enable self-filming for video demonstrations, or folding away to face the camera (how I normaly use EVF cameras now). The shared battery across the A55, A7R, NEX and A3000 models and RX10 makes it likely I might travel using a combination of these. I don’t have much use yet for the WiFi functions but I understand their importance to others, and they will really come in useful for remote camera operation in future. That can include skypole or kite work, or having a camera tripod mounted 10 metres away from the main shooting position for a different viewpoint of an event, operated from a phone or tablet.

GPS identified this as a church at Mailadumpara on the highway to Munnar – the 10-18mm lens used on full frame enabled this uncropped 36 megapixel shot at 14mm, f/11 (the shading is due to natural sky polarisation and the vignetting of the lens which I have not corrected).

I found a solution to my GPS problems in the form of a £40 igotU device from Maplin. It’s tiny (I am tempted to put a hot shoe mount on it but so far have just popped it in my shirt pocket). Free igotU2gpx file reading and low-cost PhotoLinker (buggy and unreliable in the extreme with 36 megapixel raw files) let me write GPS data into full day shoots on all cameras used. It’s not as accurate as built-in GPS and the process is tedious; the GPS data also exists in sidecar files until MediaPro is used to embed it into finished JPEGs. I’ll still buy the GPS module for the multi function shoe just as soon as Sony release it.

Top quality files

The appeal for me of the A7R is the sheer quality of the image. Even at ISO 3200, it is completely acceptable when processed carefully with Adobe software from raw. The JPEGs are mediocre with the exception of multi-shot modes and I don’t use them except for panoramas and night shots. The raw file has been criticised but compared directly with competitors, I find it has what I need – excellent highlight recovery from normal exposure levels, very low noise across a wide range of ISO, an ISO 50 setting ideal for studio lit subjects, and extreme pixel level sharpness.

The Lomography Petzval lens used on the A7R with Nikon adaptor. This reproduction lens from an 1840s design is a wonderful tool for portraits.

Richard Kilpatrick as a Victorian portrait subject with our Interfit background as a drape – A7R, ISO 50, Petzval lens at f/5.6 (Waterhouse stop) manually focused, Elinchrom Ranger Quadra RX flash.

Manual focusing with peaking and magnification combined tells you a lot about your lenses. Find a good lens, and the peaking will be present even at Low setting, with a very narrow band of activation. A poor lens (or aperture setting) usually fails to show a peaking line at Low setting, then shows one at Medium or High which has little discrimination. I’ve been able to identify my best manual and A-mount lenses by using the 14.4X magnification and the peaking function to examine targets.

Having done this, the extra performance squeezed out of almost lenses by super-accurate focusing makes AF seem inadequate. The contrast detection AF of the A7R is good, but just invoking magnified manual after it has locked on proves that it rarely hits the perfect mark. It gets to ‘good enough’. Like many new A7R owners, I find myself often using manual focusing without noticing that it is any slower than AF used to be. It’s a quantum leap ahead of any optical finder accuracy.

I find the body shape and size ideal, and have no complaints about the position of anything except the shutter release, which could have been 3mm or so further forward, and also would have been improved by the addition of a manual cable release thread (found on the RX10). I don’t plan to get a vertical grip, as the whole point of the A7R is small size and light weight. The external finish feels secure, the battery and other doors are adequately sealed and I don’t tend to overwork them.

The small body size causes a few problems with tripod mounting. Even the smallest monopod head can restrict the rear screen movement making it impossible to angle the screen down if you want to hold the camera above head height. It doesn’t angle down much to start with. The position of the Menu button, needed to access some adjustments like OSS and Finder Setting Effect, isn’t ideal as the only button on the left end of the camera. The exposure compensation dial is unusual as a solus function using up an entire large mechanical control, and has no lock, so it can be turned a little easily.

The A7/R is so customisable that after a couple of months getting used to it and changing things you’ll have a camera as far removed from its out of the box settings as a typical Canon ends up. Mine, for example, has the AF/MF and AE Lock button/switch control set up to act as Focus when set to AF/MF (with pre-Focus and tracking lock and eye-start focus all disabled), and to act as Focus Magnifier when set to AE; while the shutter release is set not to activate AF, but to lock AE on first pressure (when using the camera in a controlled environment – when travelling, I soon reverted to AF with shutter). This makes the camera anything but point and shoot, as out of focus shots are guaranteed without a separate focus action.

In practice

Like far too many A7R users, I’ve spent half my time testing and experimenting, and not enough time shooting. I’ve had the RX10 as a companion at the same time, and needed to shoot with new flash systems, where that camera’s exceptional high speed sync makes it more versatile – there’s not much point having flash heads which manage 1/5000th duration when your sync speed is 1/160th, unlike the RX10 which can manage between 1/1600th and 1/3200th depending on aperture. I had a concert venue opening to shoot, with video, and once again the silent RX10 with its superb video quality was the obvious choice.

Then, at Easter, we had a nine-day tour of Kerala, an exceptional offer from Citrus Holidays providing us with a private driver and a packed itinerary covering 1000km and five locations. This was our first visit to India for 28 years, and would provide the first library images of India apart from a few scanned transparencies of subjects which do not date. Equipment mattered. Shirley always uses her Alpha 580 with Sigma 18-250mm OS original version; it’s heavy and the lens has been through one factory service already, but it’s been very reliable and survived a short period where a Nikon D600 kit was tried as a replacement (and sold pretty sharply, in favour of returning to the more reliable AF, AE and clean sensor of 580).

Logically, my A77 and A55 would have come along. They share the same battery type, and my basic lens set 8-16mm, 16-80mm and 70-300mm gives both exceptional wide angle and a good tele performance (300mm plus APS-C plus 24 megapixels) for wildlife. It is however a very heavy kit and we wanted to travel light and work light, in high temperature and humidity.

So, the A7R had to be my choice. Apart from anything else, this camera at £1800 had not so far proved ‘better’ for any given job – it was barely used. In the studio our A900 and A700 optical finders just work far better than any EVF camera, and for general PR and social photography the last thing you need is 36 megapixel full frame. It just creates oversized files and tends to have too little depth of field. The A7R had been used for tests, for some winter landscapes, and some architectural shots. We had not travelled at all since early November.

This decision also led me to leave the RX10 behind, and this was a big mistake. I took the RX100 instead because the RX10 is fairly large. Its zoom range and silent operation would both have been valuable. With the A7R and its 28-70mm OSS lens I took the 10-18mm OSS, my Tamron 18-200mm VC DiIII, NEX-6 body and 16-50mm OSS collapsible kit lens. This was really a backup in case any fault developed. In practice the A7R makes a better APS-C camera. I only used the 28-70mm lens once, and used the wide zoom and the Tamron fairly often on the A7R with APS-C crop, occasionally with crop disabled. While it’s possible to get a bit more wide-angle from the 10-18mm by shooting full fame, the 15 megapixel crop is a 100% perfect frame every time with this lens.

Despite the phase-detect focus of the NEX-6, this camera proved less accurate and slower in all conditions. Its main benefit was better timing for shots once the finder image is focused and stable, along with quieter operation. It may be a smaller body nominally but there’s little practical difference. Also, I was wearing a baseball cap, the minimum headgear needed in the sun. The left-end viewfinder eye position prevented a right hand ‘on top’ vertical grip on the NEX-6 while the central eyepiece of the A7R allowed a choice of grip style without having to remove the peaked cap.

The most significant loss my choice involved was telephoto power. Shirley’s 250mm f/6.3 reach on APS-C would have demanded a huge lens, a true 375mm or in practice a 400mm, to get the full benefit of 36 megapixels on full frame. It would also have demanded at least one f-stop more stopping down to match the critical long lens depth of field. I didn’t have an E-mount 24 megapixel body, but if I had one my 18-200mm would have slightly outreached Shirley’s 250mm as used on 16 megapixels.

This snake bird (anhinga) was photographed using the NEX-6 and 18-200mm (162mm and f/8), from a moving boat. There is no trace of shake at 1/250th, indicating the VC stabilisation works on this body. I got excellent results from the NEX-6, which I picked up at The Photography Show on March 4th with its 16-50mm collapsible motorized zoom on a special deal. However that deal was not as good as the current B+H of $524 with free accessories.

There are no lenses yet made longer than 200mm for the FE mount. If there are any made other than an obligatory zoom to 300mm they will be expensive and limited to the E-mount system for ever. In contrast a Canon, Nikon or Alpha SSM long lens will always be usable on SLR-form bodies and also on mirrorless – possibly on various mirrorless systems. Canon EF lenses for example can be used on almost all mirrorless bodies, and Nikon teles have the possibility of fitting to their 1 system 2.7X factor bodies with totally successful functions and focusing. I’ve tried this and it works – an 800mm equivalent with outstanding image quality, from a 300mm.

It’s for these reasons I have succumbed to ordering an LA-EA4. I value the LA-EA3 because it allows me to use some lenses with contrast detect focus and a pure image path, but my favourite 70-300mm Sigma OS will not CD focus. Buy the EA4, and I can use all my screw drive Minolta and Sony glass.

This is why I sill feel the A7R can be described as the Swiss Army Knife! It can do APS-C as well as its 16 megapixel APS-C siblings, but switch to use full frame to squeeze extra angle from many lenses. My Tamron 18-200mm is only just compatible with the A7R – its VC stabilisation and general performance indicate that a firmware fix might be needed (see earlier comments) – but it can give me a 19 megapixel image sharp corner to corner with a range of image sizes from square to 35mm, at 18mm and f/11, making it as useful as a 16-200mm lens instead of an 18-200mm.

In March, I needed to write up the Samyang 24mm Tilt-Shift lens, which was only available for review in Nikon mount, and needed a full frame body. The A7R with a low-cost Nikon adaptor did the job perfectly and the magnified focusing function allowed full and successful use of the lens functions. I now have a wide range of lenses and adaptors, and there’s no manual lens I own which the A7R can not use.

The Samyang 24mm Tilt-Shift f/3.5 manual lens has better control over movements (including 30° intervals for independent rotation) than the Canon or Nikon in the same focal length, though it lacks auto iris, EXIF data and focus confirmation. Here it is used with a low-cost manual Nikon adaptor.

Using the 24mm Tilt-Shift – a lesson here in floor/ground and ceiling/roof relationships and camera position. First shot, a typical eye level architectural compromise in which a normal wide angle keeps the verticals straight. The trade-off is that you get a similarly generous view of both the floor and ceiling. Second shot, moving the camera close to ground level. Third shot, applying a full vertical shift; the floor is now seen from an angle giving it much less emphasis, while the vaulted roof is seen from below. For real estate shots, the camera is usually placed close to the ceiling on a tall tripod, and a drop front applied, to show the extent of room interiors better by emphasising their floor area. This is stuff I learned 40 years ago working with 5 x 4.

The A7R stabilisation incompatibilty issue with the Tamron 18-200mm was ‘tested’ at considerable cost in lost shots. During most of the Kerala trip, fortunately including a few chances to get close to wildlife like the anhinger shown above, I used the 18-200mm on the NEX-6 for the slightly higher resolution and faster response. I’m very glad I did this and put the A7R away. No shot shows any sign of stabilisation failure. Finding a dramatic sunset location with rocks and predictable spray from breaking waves, I used the same lens on the A7R, which I had taken to the beach to produce some tests showing full frame coverage.

One of my frame coverage tests of the 18-200mm on the A7R. 175mm, 1/200th at f/9 – conditions which with stabilisation should result in a perfectly sharp result almost every time. Instead, this combination produced a jerked slightly double imaged unsharp shot every single time. Even at 21mm focal length this degradation was visible.

All the images (full frame tests and rock sunset shots) showed the same characteristic stabilisation jerk even at 1/320th, which I had not considered possible as the peak vibration from the A7R shutter occurs 1/250th after the shutter opens. It may not be shutter shock which causes this shake effect, but a firmware incompatibility (in timing signals?) between the A7R body and certain lenses.

Here is my processed image put through the new software Piccure, which I can recommend as the first program to analyse and remove shake effectively – see http://intelligentimagingsolutions.com – and which has significantly improved some of my A7R ‘shaken up’ shots to the point that when reduced to 9 megapixels, they are as sharp as you would have expected from a KM Dimage A2 (ah, the irony… we do make progress, don’t we?). Click the above image for a full size screen shot.

This was my final crop and process from the shot involved, which was an 18.2 megapixel ‘more than APS-C’ crop from the full A7R frame, sharpened using Piccure and reduced to 24MB final image size.

This sunset, and all the similar shots taken with the 18-200mm on the A7R, proved too badly affected by stabilisation malfunction to use at the desired full size.

Again, Sony’s decision to disable OSS with many lenses on the A7R only, and to issue firmware updates to enable this, supports this theory. Whatever the case, I lost all my first night’s sunset shots for anything except web sized use (above – it’s not sharp for printing or library use). We returned two further nights at the right time and tried various combinations. It was a subject not helped by heat haze and blown salt spray (UV filters were fitted, of course, and needed cleaning frequently to avoid the whole picture being softened).

It’s so bad it almost hurts your eyes, but this was the focus point of many shots, and the double image (always in the vertical direction when the A7R was held horizontally) from the 18-200mm Tamron consistently gave a result like this. You might also suspect inaccurate focus and poor lens performance, but plenty of other shots at similar apertures and settings on the NEX-6 were completely OK. Perhaps the only answer with the A7R will be the near-£1,000 70-200mm f/4 G and replacement of the 28-70mm with another £1,000-worth of 24-70mm f/4. All that to get me back to where I was thirty years ago in terms of aperture and focal length range!

Using Piccure had no useful effect on this shot. It created triple outlines of the shake in place of double.

Eventually I got what I wanted but only with the 70mm reach of the 28-70mm OSS lens. The final, third, visit had cloud cover as the sun reached the right position. But, if you want to try this for yourself, visit Light House Beach in Kovalam at around 6.00pm (get a beer and wait) around April 16th-22nd. Like all such sunsets, there are just two times each year where the sun will hit the right position over the horizon.

The 28-70mm really didn’t have the power to give me the sun at the size I wanted, but at least with Photoshop processing this was a more or less acceptable result. For any shot like this, I would far prefer to have a true mirrorless camera – no SLT mirror either – and the A7R should be a perfect choice. Tripod use was not an option because of the crowds (which you can’t see) and combination of incoming tide and wave.

There was one lens which never let me down – the 10-18mm OSS. Whether on the NEX-6, A7R crop or A7R full frame this lens always turned in a perfectly focused and well stabilised result.

At the end of our Keralan tour, we were invited to have lunch and a short tour of a major ayurvedic resort hotel, Isola di Cocco. The tour only took twenty minutes, seeing some of the rooms, and was at mid-day when the light is not ideal. I took a few shots on the A7R including room interiors, and sent small versions to our hosts afterwards. The outcome was a request for commercial use of the image set in their next brochure. These were not exactly what we would do on a commission – for one thing, we’d normally remove towels from round the pool, pick the best time of day, make fine adjustments to room details and even use lighting.

A pool needs to be very clean to handle a shot from three inches above the water surface (at 10mm).

This is what we we used to do in the 1980s producing brochure pictures for travel operators and it was never a casual thing, more a very long and full working day with many appointments and too much driving. These shots were quick snaps, even if professional snaps, and we agreed to use for a charity donation (all Indian businesses seem to support local charities as a matter of routine).

We’d be more than happy to go back and do it properly though!

Back in the 1980s we had nothing to approach the 15mm equivalent angle of the 10mm used on crop frame A7R, even though a few such lenses did exist for 35mm systems. 35mm was like using a 6 megapixel camera, and our shots had to stand full page to double page use. I used a Pentax 6 x 7 with its widest non-fisheye 45mm lens and that was equal to a 24mm, something you can now find at the wide end of many compacts. It had to go on a tripod, as the exposure times with Fujichrome RF 50 film (for shadow detail) with the f/16 or f/22 apertures needed for sharpness in depth were usually around 1/4 to 1 second. The tripod was one you couldn’t easily take by air today, and the camera kit with two bodies and three lenses was heavy and bulky. Then there was a matter of a hundred or so rolls of film to handle the five bracketed exposures for each frame, lead anti-X-ray bags, and a large Metz flash with an extension head… and our 35mm Minolta kit on top of it all. Each room could take an hour or more to photograph.

Raw conversion controls enable the rich teak wood interior to be shown clearly without losing the highlights of the wall and white sheets.

And here I am today, complaining about aspects of the A7R when I can walk into a room like the one above, without a tripod, find my viewpoint, observe the horizon level display while composing carefully, and make an exposure at ISO 1600 with quality equivalent to ISO 100 35mm film. With a lightweight carbon-fibre tripod, this almost Leica-sized camera can now outperform anything we might have expected from 6 x 7 film and at ISO 50 is good enough for wall-sized prints and poster reproduction.

We have some aspects of A7R technique and performance to ‘fix’ and you’ll realise that I do not approach using any new camera uncritically. But there’s nothing else on the market short of medium format which can match what it does.

I do not address, here, the demands of users wanting to switch from conventional heavy-duty SLR type cameras whose gear includes fast long apo telephotos and zooms, who work frequently with sequence bursts, require to track sports action, shoot news, capture wildlife or want to snap their kids and pets (which requires much the same camera performance as covering sports and news… they may move slower but they are much closer!).

My present thinking is that the new 12 megapixel A7S with its 4K motion picture capture and extreme low-light performance may not be what I want, but I’m considering adding an A7 or changing the NEX-6 for an A6000. I’m not quite ready to sell the A900 or the A77. I’ll see how the A7R performs over the summer and update in due course.

The A7 MkII with full-frame stabilisation, announced in November 2014, tends to put my theory about power drain and lenses into doubt, but only because I might assume the 5-axis sensor stabilisation also puts a heavy load on the battery. It does have the different shutter mechanism found on the A7, and of course, it does not have a 36 megapixel sensor to power.

– David Kilpatrick

DK's ramblings, Equipment Reviews, NEX System

Using the 10-18mm OSS zoom on full frame

Posted on December 3, 2013 By David Kilpatrick

The Sony E-mount (not FE) 10-18mm f/5 OSS lens can be used effectively on full frame for creative work and within limits for technically more demanding shots. Below, an uncropped A7R shot of the concourse at Abu Dhabi Airport, taken at 13mm setting, f/6.3 with my lens profile as provided below. Check the straight lines in the floor tiling, if you doubt that this lens would be of any use for architecture.

However, you don’t get this without a lens profile, and without due care to limit the focal length to a range of 13 to 16mm – not the full 10 to 18mm. Below, you could get this if you try 12mm straight out of camera…

This is a pretty awful case of vignetting and distortion – as you would expect. It’s from an APS-C format wide angle zoom, the 10-18mm f/4 SEL OSS lens for NEX, used on the Alpha 7R full frame mirrorless body. Early in the launch period of this camera, various far more attractive images appeared on-line using subjects like roads, rail lines, beaches and even shop counters where the lines look straight – rather like that drainpipe – because of where they fall in the shot. As you can see, anything with a horizon near the long edge of the framewould have given a very different impression.

However, Adobe offers a free utility which enables you to make lens profiles to correct vignetting and distortion.

I created a lens profile for ACR/LR using full frame and the 10-18mm on the A7R. The vignetting is such that the profile creator really can’t handle it, and overcorrects the extreme corners as a result. I’ve done f/4, f/8, f/16 at 12, 14, 16 and 18mm focal lengths using an A2 chart; for a lens like this, a much greater working distance and an A0 chart would really be desirable. The link below is to a zip file of the Adobe Lens Profiles I produced – for A7 and A7R, with .lcpp files for final use, and .lcp files for different settings of the 10 18mm I found useful.

10-18AdobeLensProfiles

At 12mm you can probably see the vignetting artefacts in the corners, the magenta corner shift and incomplete correction of the horizon line. You’ll also be quick to spot that the 12mm coverage has been reduced to something much less, lens profiles always reduce the field of view (they can not do otherwise).

The profiler simply can’t handle the degree of sudden fall-off in illumination given by the 10-18mm used on full frame. Manual distortion corrections can actually do a better job. At other focal lengths, the profile I’ve made works well enough, and if the frame is cropped slightly (still exceeding the APS-C area the lens is designed for) it’s possible to get good results and wider angles.

I have sold my Sigma 12-24mm HSM II which was used with the A99, and also sold a Voigltander 15mm f/4.5 I bought to test (zero cost fortunately, as it made a small profit between Gumtree source and eBay destination). The Sigma was not only very difficult to focus using CD, its HSM motor won’t play with Sony CD.

My .lcp full-frame file can be downloaded from:

//www.photoclubalpha.com/AdobeCameraProfiles/ILCE-7R FF (E 10-18mm F4 OSS) – RAW.lcp.zip

Just for good measure, here is an uncropped A7R 13mm focal length shot of the church of Maila Dumpara in Kerala taken to use dramatic converging verticals – which fail terribly unless the lines are properly corrected, the last thing you want in a strong upward angle is lens distortion. It’s very stiff test of any lens to do this. I have left the vignetting uncorrected. I rather like it. Click either this or the Abu Dhabi photo and you’ll get a larger image, about 1000 x 1500 pixels.

Samples produced for a dPreview forum question

There’s been a lot of discussion on dPreview forums of which lenses work on full frame E-mount, as Sony saw fit to put a Disable APS-C crop option in the menus of the A7 and A7R (almost as if they wanted owners to experiment). They have made other welcome changes of a similar kind which I’ll cover in a full review of the camera – which I can not do yet as I have no FE mount lenses for it, and with the current choice and prices, I can see I may never use FE mount lenses on this camera.

So, to answer some questions on dPreview’s E-mount forum, I posted these images and comments.

Here is a ‘native’ uncorrected shot of a local building taken on the 10-14mm on A7R at 11mm, f/10, ISO 100:

View: original size

Here is the result of using the profile, doing a crop and some straighten of slight rotated tilt, and pulling the scale down (with the profile applied, the roof apex is clipped off at the top as the lens has so much distortion its 11mm probably becomes more like 15mm when corrected):

View: original size

I’ve used some clarity and local burn adjustments on the sky to treat the image more or less as I would (except that I wouldn’t actually photograph this building at this time of day, with blinds drawn, etc).

For me, the 10-18mm on A7R with our without the profile correction offers the same options as using assorted lenses on 5 x 4 sheet film. It never mattered whether a 47mm didn’t cover the entire film, you got an image circle and could use whatever part of it you want. At 10mm the image, with the profile used, has strong corner cut-off but the overall circle of usable image greatly exceeds APS-C provided you stop down (f7.1 seems just OK, f/10 is maybe optimum, I’d certainly try f/16 despite fears of detail loss).

View: original size

The red crop mark is square – my ‘Hasselblad SWC killer’, as the classic SWC had just a 38mm wide angle lens. You needed to get an Arcbody with 35mm Rodenstock to go any wider on 56 x 56mm film (6 x 6). With the A7R and 10-18mm at 10mm, you get the equivalent of a 24mm lens. Not a 24mm fisheye on 6 x 4.5 like the widest ever offered by Mamiya… a 24mm rectilinear on 6 x 6.

The yellow crop mark represents a significantly larger area than APS-C (which is actually just a little under the 24 x 24mm square in width). It is shifted vertically, as if the lens was being used as a shift lens. If only the APS-C area is considered, its approximately 16 x 24mm area can be positioned right to the top of the frame, equalling a 4mm rise, or the equivalent of using a 6mm rise on a full-frame PC lens (most actually go to 11 or 12mm rise). There is only one lens made which can compete with this, and that’s the Canon 17mm f/4 TS. Admittedly this is a superb lens and when stopped down to f/11 and used on the 6D (Canon’s most shift-friendly sensor) will blow this result away for clean rendering of detail toward the frame edges.

And then, you can still use the 10-18mm in APS-C crop mode as a snapshot wide angle with pretty much perfect correction (Adobe’s own Sony profile for APS-C), for videos too.

– David Kilpatrick

DK's ramblings, Lenses - E mount, NEX System, Photo Techniques, Sony Digital Cameras, Sony Digital Csmeras, Uncategorized

Sony A7 merges NEX and RX lines, RX10 revives classics

Posted on October 16, 2013 By David Kilpatrick

Although some of my information back in September was off-mark (writes David Kilpatrick), the post which I put up here was definitely right about the new A7 or rumoured ‘full frame NEX’ being based on the RX body design. I gather it was not the Alpha division, or the NEX division, which handed the prototype cameras to photojournalists from Magnum and Panos agencies. It was either Sony management at an even higher level, or the Cyber-shot division. The photographers involved had previously been using the RX1. They were given the pre-production A7 as a development of the RX1. It may even have been produced because Sony got the feedback that an RX with interchangeable lenses would be great.

Richard Kilpatrick attended the London launch event on Wednesday 16th October and has a small gallery of JPEG shots taken with prototype or pre-production bodies and lenses:

http://www.pbase.com/davidkilpatrick/sony_a7_a7r_samples_by_richard_kilpatrick

Richard also relays these comments (now finalised and properly written, evening of a busy day):

Both cameras are deceptive; you simply don’t expect this image quality out of something that light. It’s not like carrying a Leica, where you’re wielding something that might double as a weapon – the magnesium body and full-frame sensor feel solid yet after carrying my regular full-frame SLR, it’s a genuine shock.

The Zeiss lens on the Alpha 7R I used, the 55mm F1.8, looks to be exceptional. When first looking over the JPEGs, I went straight to the corners – the clarity, the even illumination, just instantly impressive. The kit lens I didn’t spend as much time with, and I tried it on the 24Mp Alpha 7 mostly investigating the AF, but I would be opting for primes anyway on this body. I’m curious to see how it handles Leica M-targeted lenses – there will undoubtedly be a 15mm or similar, but one of my favourite inexpensive lenses on the M9 was the Voigtländer Super Heliar II, which showed dramatic falloff and magenta tinges in one corner on that full-frame CCD. It was possible to correct, it seems Sony’s work on short registration full frame may be extremely successful, or their lenses are very well matched. Either way, it works.

I’m not very familiar with Sony’s user interface, and I found some controls slightly unintuitive – on this pre-production model, I couldn’t change the ISO whilst the file was being written. That’s the sort of thing which if I’ve left it set to Auto, or simply hadn’t been paying attention between uses, I might want to do – noticing an incorrect exposure and wanting to rapidly correct my error and reshoot.

Other areas of the UI impressed. The animations for aperture and so forth as you adjust the wheels are quick, clear and unobtrusive, whilst still providing the feedback that would allow less experienced users to see which direction they’re heading and what options are available.

The main screen is very nice. Sharp, and I’m a big fan of articulated screens that allow the use of a camera in a “waist level finder” format. Felt solid, robust enough to cope with professional abuse.

Card door and battery compartment aren’t combined, which is a bonus on a compact body. It also has a well sculpted grip. Perhaps it’s unfair to make direct comparisons, but let’s say I prefer this sort of body design to the flatter, more ‘retro’ inspired mirrorless options on the market.

Can not mention this enough, it’s tiny. It’s properly tiny. Not tiny like “well, it’s as big as a classic SLR from X manufacturer, but it’s packing a tiny sensor in there” – it’s “35mm film era compact body” tiny. With a proper, serious sensor in it, the design compromises to achieve a digital, high-tech UI in a small form factor feel like a much better trade than if you’re working with small controls and sacrificing sensor area.

Port covers are hard plastic, hinged, a bit annoying (rubber ones will at least bend if you catch them by accident). Again, lack of familiarity with Sony catches me out here, as the accessories I’d often expect to hook into the ports use the hotshoe accessory port. An adaptor for the earlier hotshoe is available and about £25 apparently, I was more concerned that I wouldn’t be able to use a regular wireless trigger and thus finding a conventional – albeit very sophisticated – hotshoe was reassuring. I wonder how many regular professionals share that perception – that there will be a non-standard interface on the Sony body.

Shutter sound is very solid, mechanical. A really nice sound. There is not a fully electronic shutter mode available, so no silent shooting, but it’s discrete enough.

Ergonomics are really good. The wheels are logical, I found my way around it very quickly on the whole, though without the experience David has of Sony’s software I didn’t know where to find specific features right away. It was logical enough for the main features, such as setting file size and type. There’s an optional battery grip, though it’s really not vital for changing orientation – the camera is so light, one handed shooting and quick rotation is easy.

I am not a fan of EVFs, though I’m happy to work with them if that’s what I’ve got, an optical viewfinder will always be my preferred route. That said, the EVF really did impress. It’s very sharp, has an impressive refresh rate and of course, somewhere there’s a lot of data being shifted to generate that 2.4Mp image. Cannot deny the technical accomplishment! The overlaid virtual horizon was useful and unobtrusive, though I wasn’t clear on what focus point I was using due to my lack of familiarity with the interface.

Sensor exposed when lens detached. This is common on mirrorless bodies, but I’d really like the option for the shutter to close when detaching a lens. Pros do not treat their kit the way an enthusiast or amateur will cherish the substantial investment – the job, be it on sandy beaches, muddy fields or pouring with rain at a wedding, must take priority and the cameras and lenses get subjected to abuse.

I want one, in an abstract way. it’s really very nice. To expand on that – I’ve a feeling when I see what the finished firmware and raw files offer, and have had more experience with the Zeiss lenses in particular, the shift to an EVF is a change I’d willingly accept for the size and quality advantages, but it’s also just a lovely bit of design. Really appealing.

Sony want to move to pro market. Sony have pretty much always had good glass and bodies, but this offers something really unique that should appeal to many professionals – not least because of that 36Mp sensor.

NEX brand is no more. All models will be united under the Alpha brand, with A, E and FE mounts (Alpha, E and Fullframe E) – Richard Kilpatrick

That it should use the NEX E-mount (already used for full frame on the VG-900) was never in any real doubt, though other prototypes may have existed using a different approach. Today, worldwide, the A7 (24 megapixels full frame with Phase Detect focusing pixels on the sensor) and the A7r (36 megapixels without PDAF, but with AA filter) were officially announced.

Compare the body here with the RX1 below – and make a special point of looking at the film plane index mark on the left-hand top plate end. You’ll see that the sensor is positioned much further forward in the A7 body, as the FE mount has the same 18mm register as the original E-mount (including the RX-style decorative orange lens throat bezel) and the RX body is thicker than a NEX even before this is added. This enables a flush-mounted double hinged rear LCD screen, but it’s not a fully articulated or reversible screen, which is a pity.

You will also see that the entire body has been extended in length, despite the RX being full frame.

This is necessary to accommodate the mechanical drive for the focal plane shutter, which sits more or less between the lens and chunky right hand grip (the RX has no FP shutter as it uses an interlens design). All other principal aspects of the A7 stem from the RX design but the construction is not the same, with multiple magnesium body components sealed together and a different set of interface covers.

The cameras include WiFi and NFC (NearField) communication to enable cable free transfer of images. It does not have built-in GPS but a GPS module is expected for the Multi Function Accessory shoe. The cameras have 2.3K dot 0.71X 0.5 inch OLED EVFs, essentially the same as the A99 with a similar generous eyepiece size and auto switching.

There also appears to be some extra depth to the body. You could dream that the extra body depth, length and height conceal the required mechanism for in-body stabilisation… but it’s just what is needed for the focal plane shutter.

We had hoped that the 35mm f/2 lens would be replicated, but this was not to be despite some information that the 35mm being used on prototypes was ‘the same’ as the RX1. Instead, there’s a 35mm f/2.8 Zeiss. I will admit to being underwhelmed by that, as it puts the A7/A7r into a category which almost every camera ever made matches (very few cameras can’t achieve a 60° view angle at f/2.8 – it’s what the cheapest compact 35mms used to start with). It is not stabilised.

One zoom lens also announced – a lower cost stabilised(?) Sony G 28-70mm f/3.5-5.6 – also fails to set the heart racing (or the hands racing for the wallet) when you consider its modest aperture and fairly substantial size. Unlike the 35mm, it has a rear ring which is marked for aperture adjustment like the RX1 (silent or clicked at choice). The FE mount, while compatible with existing E-mount lenses and accessories and has the same ten-pin contact array, may have additional protocols to handle the on-lens aperture setting.

The 28-70mm zoom is not a true parfocal, it’s similar to lenses such as Canon’s 18-135mm sold with their EOS 70D which almost negates the value of on-sensor PDAF by having massive focus shift when zoomed.

If you want contrast detect focus to work, you need parfocal zooms. You need to keep the subject as close to being sharply focus when you zoom as you possibly can. This zoom does not have a constant aperture though setting it to f/5.6 or smaller may have that effect, and it has a large varifocal range (closest focus at 28mm is 0.30m, at 70mm, it’s 0.45m).

Looking at this, I feel that the 24-105mm Sony f/3.5-4.5 D I’m using on my A99 has real appeal.

This shot shows a Carl Zeiss 24-70mm f/4 OSS lens, not a kit lens, but an option at a high price. This is a more realistic range. My guess is that this lens will not only be a constant aperture (regardless of setting) but also parfocal so zooming during video will not force a refocusing process.

The A7 models have audio manual level control during video and a conventional 3.5mm jack for mic input, clean HDMI output for professional external recorders, and for stills only (not video which remains 1080 50/60 or 25/24p – there is no 30p option) the camera will play back at 4K resolution for the new Triluminos gamut Sony 4K televisions.

The final lens of those released with the camera is a 55mm f/1.8 – again, a slightly odd choice for an expensive standard angle lens of reasonable speed without being special. Bear in mind all these lenses are weathersealed and built for professional use, with the kind of smooth focusing and aperture control required for video as well as stills. A 70-200mm f/4 is also released, putting a total of five lenses in the showcase for launch despite the absence of a true super-wide.

A brand new LA-EA4 Alpha mount lens adaptor provides phase detection AF via an SLT mirror, and has sufficient clearance internally to prevent image cut off (the LA-EA2 casts a shadow on the sensor as it has a smaller throat). A new 70-200mm SSM G II A-mount lens has been launched today as well as is picked out by Sony as compatible with this adaptor.

For most potential buyers, the preview of many other lens adaptors – for Leica and for Canon, as examples – will not just be an added attraction, it will be a essential function. It would be interesting if the FE-mount allows adaptors with their own aperture ring controlling lenes such as Nikon G, and reporting EXIF correctly to the A7’s CPU. That kind of detail we’ll have to wait to learn about; most early reviewers will have other concerns. Adaptors are vital because this camera is launched in sharp contrast to the original NEX-5 and 3 models, with at the best a semi-wide prime lens and a basic wide angle on its zoom.

The NEX system set off with a 24mm lens equivalent, an 84° angle of view considered to be the most desirable all-purpose wide angle, in the box. The NEX SEL 16mm f/2.8 may have had its critics and its QC problems, but it’s become a much-loved lens and got hundreds of thousands of NEX owners off to a great start needing no other wide angle lens. It also had the 12mm wide and 10.5mm fisheye adaptor options at modest cost, meaning that those who wanted true wide views had no reservations buying into the system.

The A7/r is in sharp contrast to this, without no prime in the launch range shorter than 35mm. Professionals would definitely want to have a fast 24mm (and a faster 35mm!) and a geometrically good 20 or 21mm. The Leica 21mm Super Angulon was almost the standard lens for photojournalists from as long ago as 50 years, reaching a peak of popularity in the 1970s, still considered vital when you’re in a tight situation with crowds. The A7 is an incomplete professional tool until it has a moderate sized, f/3.5 or f/2.8 20-21mm. Vignetting is acceptable as long it’s not accompanied by a colour shift. Vignetting actually helps with the look of the images!

The AA filter

The A7r with its D800 level resolution (but a sensor not related to the D800) has the AA filter removed, as in the RX1r. I have tested the RX1r against the RX1 for the British Journal of Photography and I’ll write here about the whole issue of AA filters and moiré only after the BJP has published my report. I will say that the moiré is not a minor issue, the RX1 standard version is already capable of throwing up moiré as it has a very weak AA filter, and the RX1r is bitingly sharp.

So why does Sony do this? It’s hostile to video though the scaling down from the 6000 pixel sensor to a 1920 pixel HD frame is accompanied by moiré removal. The answer lies in conventional contrast detection autofocus. AA filters reduce fine detail contrast and tend to smooth the luminance peaks and troughs used by contrast detect focusing to decide when the image is most sharp. Removing the AA filter has a small but significant effect on the speed and accuracy of contrast detection focusing, along with an improvement in many irregular textures like distant woodlands, lawn grass and human skin. So if you incorporate image processing able to remove some of the resulting moiré, it makes sense. This is the route being taken by most other makers now to get the best possible live view auto follow-focusing.

The A7r sensor has a sensitivity of 100-25,600 expandable to 50, and to 51,200 with multi-frame noise reduction.

The battery

The RX1, like the RX100, charges via micro USB and uses a very small battery., NP-BX1. This is fine for running a camera without a focal plane shutter, though pushing it for capacity when running the larger RX1 with EVF (you need spares). The A7 models have a large finger grip partly to accommodate a more substantial battery. The tiny NP-BX1 is really a consumer compact camera cell. The NP-FW50 used by the A7 models is the same cell used by NEX and Alpha 55 (etc).

A battery grip VG-C1EM accepts two of these cells for extended shooting. Charging remains in-camera despite the battery size, as with the Alpha 3000, the first camera to charge this battery type via USB. However, there is an external battery charger available.

Availability

Sony state ‘mid November’ for worldwide shop stocking. B&H already has offers in place:Sony A7 digital camera body only $1,698
Sony A7r body only $2,298
Sony A7 with 28-70mm $1,998
Cyber-shot RX10 see below $1,298
CZ 24-70mm f/4 OSS $1,198
Sony FE 35mm f/2.8 ZA $798
Sony FE 55mm f/1.8 ZA $998
Sony 70-200mm f/2.8 G SSM II $2,998
Sony LA-EA4 SLT Alpha mount adaptor $348
Battery Grip $298
Charger $48
Off-camera flash shoe (also for all other cameras with Multi Function Shoe) $198

The RX10

As this image, released in the early hours of the morning, shows it’s a bridge camera with an 8.8-73.3mm f/2.8 lens which is equal to 24-200mm on a 1″ sensor (2.7X factor, 2:3 format shape). This is the spiritual heir to two cameras – the Konica Minolta A200 and the Sony Cyber-shot DSC-R1 – rolled into one. The A2/A200 was described as having a 28-200mm lens, but because it had a 4:3 format shape, the lens was actually equal to a 24mm if you wanted an 8 x 6″ print shape (the 28mm equivalent assumed you cropped the frame down to 2:3… not many people know that…). And that camera had a 7.2-56mm lens, which tells you that the 2/3 inch sensor is for some reason more like a 3/4 inch sensor relative to the 1″ standard.

The RX10 has a mechanical zoom just like the earlier Minolta/KM and Sony models. As long as the lens lives up to expectations, it’s going to be a great general purpose camera, with its 1/3rd click stopped aperture ring round the lens and its Alpha style mechanical AF mode switch. Why would you really want anything more than this for 90% of your out-and-about photography? It has Nearfield (NFC) connectivity but does not have WiFi, or GPS built-in. It does have the Multi Function Accessory shoe which can add many accessory functions in future.

One surprise is that this camera has a mini XLR balanced powered adaptor kit for microphones – this is the small XLR you may have seen on wireless mic sets, locking and more secure than the minijack which is built-in for regular use. This also has audio level metering and manual gain control (thus beating the Alpha 77, which remains hampered by forced auto gain for audio).

Local noise reduction

All the new Sony models have improved sensors and processors. The A7r has the microlenses moulded directly to the sensor, rather than added in an overlay layer as it normal, and they are gapless. The RX10 has a back-illuminated sensor. All have ‘local noise reduction’ which sets alarm bells ringing. If it’s a function that only affects JPEGs, all very well; if we have adaptive local NR affecting raw files, it will only be acceptable if it can be turned off (at least, to some users).

DK's ramblings, News, NEX System, Rumours, Sony Digital Csmeras

Alpha 3000 has NEX mount, 20 megapixel, APS-C

Posted on August 27, 2013 By David Kilpatrick

The long-rumoured Alpha 3000 was announced earlier in August but placed under a n embargo until August 27th. At the same time, the Press was given an insight into new smartphone related products (also widely rumoured) but again, not allowed to print anything officially.

(via Sonyalpharumors.com)

The A3000 is a DSLR-like body with an electronic 1.44MP viewfinder in a prism-style top bulge, but the body is much slimmer at the lens mount and built to the smallest Alpha form factor as the 3 series indicates (smaller than the A57). Indeed, it’s not so different from the relationship of the very first Alpha 3000 series cameras back at the end of the 1980s. The mount is a regular NEX E-mount and the camera lacks any form of Phase Detection AF, depending on Contrast Detection matched to both existing (18-55mm SEL, etc) and new E-mount lenses. The rear screen is a 230KP fixed type.

Along with this first Alpha E-mount body, Sony announced three new E-mount lenses – a 50mm f/1.8 E OSS (£249) in black, CZ Vario-Tessar T* SEL 16-70mm f/4 ZA OSS (£800) and a Sony SEL Power Zoom 18-105mm f/4 G OSS (£500, and also destined to be matched to the next generation of NEX camcorders, with its friendly left hand operated PZ switch and quiet, controllable action). There may also be another power zoom, probably 16-50mm f/2.8 or a similar short wide aperture range, maybe even the 10-18mm in a power zoom housing. The reason these new lenses are made with constant apertures has nothing to do with the ‘Canon f/4 L’ obsession; it’s entirely to do with video work, to enable zooming without brightness change. The power zoom function is also there for video.

Caveat: the 18-105mm has a close focus of 45cm at 18mm, 95cm at 105mm. This indicates that the lens is not a true zoom but a varifocal. Varifocals are not of much use for zooming during a take in video, which goes against the constant aperture and power zoom features. So either the lens has an automatic compensation system which can refocus intelligently during power zoom, or a physical limiter on focus travel (unlikely – what would happen if you focused on 45cm at 18mm, then zoomed to 105mm?). The 16-70mm focuses to 35cm over its zoom range, and is actually capable of close-ups with better than double the image scale (less than a quarter of the frame enlarged) relative to the best the 18-105mm can offer, at 0.23X.

The relatively high level specification of the 16-70mm ZA does not necessarily indicate that there is a higher level of Alpha E-mount body on the way quite yet; at 20.1 megapixels (the same size sensor as the Alpha 58, with some improvements) the performance in terms of imaging may be optimal for a while. photokina 2014 should be when any professional body appears. But this is no way professional – it’s a mere £370 kit with 18-55mm f/3.5-5.6 E OSS, ISO range 100-16000, full HD video, A58-like viewfinder and general performance. You’ll see it in the shops before the end of September.

Sony’s agenda

Much has been made of Sony’s relationship with Olympus and the possible inclusion of OM-style 5-axis sensor stabilisation in E-mount bodies. Though the A3000 seems to have SteadyShot Inside (not confirmed by our man at the press conference, and not one of the features shown on the swingtags of the first cameras photographed by others) Carl Zeiss, traditionally wary of stabilised lens design, would not be issuing the 16-70mm with OSS unless fixed sensors were going to around in NEX and Alpha E-mount bodies for some time.

Whatever type of in-body stabilisation it has, the A3000 with SS looks like a good companion for existing un-stabilised lenses such as the Sigma 60mm, 30mm and 19mm f/2.8 designs or specialities like the Voigtlander Nokton 42.5mm f/0.95. However, I’m writing this prior to the big release of information this morning. Despite many statements that the camera does have IBIS, I see no rock-solid evidence that it does and I’m very aware that Sony staff if asked whether it has stabilisation could well say ‘yes’ on the basis of the OSS present in the kit 18-55mm lens. So, I treat this information with caution. It would not be the first time an expected feature has not materialised. Check the Sony site if you are reading soon after 5am GMT, I’ll amend this article later in the day.

Update 9am: full details are now widely on the web and there is no IBIS – here’s a complete rundown and sales page from B&H in New York on all the new products, including tech specs.

In the meantime, we know that Sony has been increasingly close to Sigma (a company which also works with Zeiss) and that some ideas may be shared between the two companies. One of the most important ideas promises to end the way your camera system choice locks you in to one company’s products. Sigma has taken the first visible step with its mount switching service. Future Sigma DSLR lenses can be returned to the workshop and their entire rear mount changed, at a cost, to another mount. So you will be able to own your 300-800mm (2014 version…) and if you switch from Canon to Nikon, the lens can switch with you. Now that many regular lenses cost £1000 or more and Sigma’s quality is so highly regarded (35mm f/1.4, MFT and E-mount lenses, DP series) it will make sense to keep the glass for longer. The new USB-interfaced lens calibration kit will also enable such lenses to be user tuned to work with their new host bodies.

The second idea is the switch to E-mount for more products by Sony. There is already a full frame E-mount Sony, the NEX VG-900E, and it’s actually a 24 megapixel still camera shooting raw, as well as a high-end full frame camcorder. It just gets very little attention because it does not look like an SLR or a NEX. This camera has adaptors for other systems of full-frame DSLR lens, as well as a specialised full-frame version of the Alpha mount plain adaptor (LA-EA3 without APS-C internal baffles found in the LA-EA1). However, third party makers have not yet gone the distance. Prime lenses from Samyang and Carl Zeiss are the main E-mount full frame offerings, made for video.

With the Alpha 3000 we see the introduction of an idea I sketched out for film cameras in the 1970s based on discovering the Contarex with its interchangeable 35mm backs. My concept was a camera body with a shutter unit, and a mechanical linkage for slot-in modules including a rangefinder mount, an SLR mirror-box with prism, and a pro mirror-box with interchangeable finders, plus several further front components to switch between Pentax, Minolta, Nikon, Canon and other lenses. Alpa came close to managing this with their very slim bodies and mount adaptors, plus a combination of optical direct finder and prism.

Sony’s future, like Sigma’s, lies in crossing all boundaries. The eventual full-frame, E-mount DSLR-style camera may well have the rumoured 36-50 megapixel sensor, 4K electronic viewfinder, and five-axis sensor stabilisation. It will also have an Alpha lens adaptor and firmware lens recognition good enough to let SSM and SAM in-lens focus motor lenses function adequately with on-sensor focusing. But what it will also have, for certain, is a range of adaptors for other mounts including Canon EF and Nikon G with translated control of AF and aperture (exactly what Sigma has now built in to the front ends of its ‘switchable mount’ new lens series). These will likely be third party products, but Sony has already shown (in 2010, at photokina and other shows) that it has no difficulty welcoming makers such as Metabones and Novoflex on board as co-operative vendors.

What’s more, in theory there will room to build a phase-detect mirror system (SLT) into some adaptors and even to add a focus drive motor. With the right chipset to translate the protocols from body to lenses, or to mechanical functions in the adaptor, almost any lens ever made for any SLR or rangefinder from the last century of miniature camera development will find a home on Alpha E-mount bodies.

Then you will have the ‘DSLR-CSC’ hybrid to end all – the body which can be sold with a Nikon mount, or a Canon mount, or an A-mount – or use its highly optimised future full-frame E-mount optics. To some degree the NEX has already done this but the real impact of the 18mm thick body, compatible with full frame lenses, has yet to be seen.

Caveat – if a full frame model does use sensor stabilisation, mechanical obstructions could mean that a crop factor of somewhere around 1.2X was needed. Sony already has pixel-shifting electronic stabilisation for video, not stills, and this also needs a crop factor to work. It would be easy to imagine the full-frame NEX accepting this limitation, and providing electronic stabilisation on-sensor only, removing moving parts and improving precision/calibration.

The NEX-5T

The NEX-5T has the same forward flippable rear screen mechanism as the 5R, one of the advanced over the earlier 5 and 5N designs.

The NEX-5T is the successor to the NEX-5R (5n, 5 etc), available as a black or white body. The 16.1 MP APS-C CMOS sensor NEX-5T will sell for around £600 and adds Near Field Connectivity technology to WiFi. Fifteen of Sony’s PlayMemories ‘apps’ are now available. Features include Hybrid AF (CD-PD on sensor), 180° tilting LCD, and maximum sensitivity of ISO 25600.

See: www.sony.co.uk

Cameras (DSLR), HD Video, News, NEX System, Sony Digital Csmeras

Sony firmware updates roll out

Posted on February 6, 2013 By David Kilpatrick

With new firmware for the Alpha 77 and 99 and most current models now up for download, the promised rush of new firmware is probably complete. The Alpha 77 firmware has errors in the web page for Europe, referring to the Alpha 57 and showing pictures of the 57. This is probably because the page has been based on another used as a template. The firmware, we can confirm, is for A77 and updates correctly.

Note that when using a Windows PC, 64-bit doesn’t work with Windows 8. You have to read the asterisk info carefully to see this. Mac OSX 10.8.x Mountain Lion does work in 64-bit and there is no need to reboot to do the upgrades; older Mac systems must be in 32-bit mode.

The firmware is specified as updating the on-board lens correction list, and for the A99 (v1.01) the ability to use sensor assisted PDAF with some lenses:
Provides support for the following ”Dual AF” function compliant lenses:
SAL24F20Z, SAL85F14Z, SAL135F18Z, SAL70300G, SAL70200G, SAL35F14G, SAL1635Z, SAL100M28, SAL50M28, SAL85F28, SAL300F28G
Provides support for the following automatic compensation compliant lenses:
SAL100M28, SAL50M28, SAL85F28, SAL18200, SAL20F28, SAL28F28

You can find the A77, 99 updates and some other software via these links:

http://www.sony.co.uk/support/en/product/SLT-A77/updates

http://www.sony.co.uk/support/en/product/SLT-A99/updates

To find the updates for other cameras change the URLs to include SLT-A57 (to version 1.04), SLT-A65 (to version 1.07), SLT-A37 (to 1.04). There are no updates for the A33, A35, or A37 and no updates for DSLR models such as the A580.

There are also firmware updates for the NEX series, including the 5N:

http://www.sony.co.uk/support/en/product/NEX-5N/updates

The benefits for the 5N are considerable especially if you want to buy the pancake 16-50mm lens. Here is Sony’s list:

Applies automatic compensation to “SELP1650”
Updates RAW data format version
*After this update, distortion correction of RAW data will be available with Image Data Converter Ver.4.2 or later. The latest version of Image Data Converter is available on the following site: http://support.d-imaging.sony.co.jp/imsoft/Mac/idc/us.html
Adds bracket shooting exposure settings (three frames / 1.0EV, 2.0EV, 3.0EV)
Makes “SELP1650” retract immediately after turning off the camera
Improves autofocus operation stability
Enhancement of AF response: When subject distance changes enormously.
Improved stability in certain camera operations:
- When setting [Lens Compensation: Distortion] “Auto” and [Picture Effect] “Miniature” at the same time.
- When setting [Exposure Compensation], [Intelligent AF] operation improves.

Again, to find your updates, just change the model number – there are updates for the NEX-F3, NEX-5R, NEX-6, NEX-7 but not for the NEX-3, NEX-C3 or NEX-5. Improvements are given in the instructions and include correction for the 16-50mm on all cameras.

There is one software update – Alpha 99 compatible Remote Control 3 (USB control, shooting and image transfer from PC or Mac) is now released:

For Windows: http://www.sony.co.jp/imsoft/Win/

For Mac OS: http://www.sony.co.jp/imsoft/Mac/

The same software can also be used as before (RC2) with Alpha 700, 900 and 850, reinforcing the value of these excellent DSLRs which were Sony’s three most professionally specified optical viewfinder models in their time (2007-2009) and remain so. The Alpha 77 is not supported. Settings can be changed on your computer, the camera can be triggered, and the resulting files stored on the computer.

RC3 is a stand-alone program now and does not require to be part of the Image Data Suite. It is Mac OS 10.8 (Mountain Lion, on Intel systems) and Windows 8 compatible (but not 64-bit Windows 8).

There is also a NEX lens firmware update, which can only be installed using an updated NEX-6 or NEX-5R (not a 7, or any other model).

Lens Firmware Ver.02: SEL1855, SEL18200, SEL55210, SEL24F18Z, SEL30M35, SEL50F18 (Windows computers procedure)
Firmware update , 05/02/2013

Lens Firmware Ver.02: SEL1855, SEL18200, SEL55210, SEL24F18Z, SEL30M35, SEL50F18 (Macintosh computers procedure)
Firmware update , 05/02/2013

Each lens is a separate updater so you need a well-charged battery and a little patience in order to update all your lenses. At the time of checking, there are no firmware updates for the LA-EA1, LA-EA2 or LA-EA3 Alpha lens adaptors for NEX.

Cameras (DSLR), Firmware Updates, NEX System, Sony Digital Csmeras

Paperback edition of Photoworld 2008-11

Posted on October 28, 2012 By David Kilpatrick

We have decided to make a Lulu print-on-demand digitally produced paperback edition covering the last three years of Photoworld magazine, covering the period from the launch of Alpha 900 and photokina 2008, through to the final edition of our quarterly magazine in Summer 2011, when the Alpha 77 was about to hit the streets.

This 312-page book includes the content of 12 editions of Photoworld, each with its cover and contents page, with some advertising and some regular content or ‘diary dates’ removed. A few items like this remain in place, notably Sigma advertisements, because the alternative would be to pay for a blank white page – or they are small ads and part of a larger page layout. We think even these are still of interest for the future.

Some typos and errors have been corrected so this book has more accurate versions of many articles. Some content has been changed, such as the A2 foldout print included in the Autumn 2008 edition to show the quality of the A900 24 megapixel file. As far as we know, Icon Publications Ltd remains the only photo magazine publisher to use the option of a ‘centerfold’. We’ve done it in our professional titles as well, to show medium format quality at its best. But in a digitally printed book, it’s not possible to staple in a 16.5 x 23.75 inch poster. Instead, we’ve used a different choice of a spread and two full page images.

Through this book-form edition, you can track the birth of the NEX system and the death of the optical viewfinder.

If you can not see the Flash preview above, use this link:

http://www.lulu.com/shop/david-kilpatrick/photoworld-2010-11/paperback/product-20477114.html?showPreview=true

The book costs £64.50 – the original three years of magazines would have cost £53.85 absolute minimum (UK annually renewing subscription) and a typical binder costs £10. However, for worldwide customers the overall cost of the magazines over three years plus a binder would have been £90. Digital printing is expensive and we don’t make much on these, but we’ve had Lulu print calendars in the past (2011) with super results and this should be a very good quality book, fairly matching the original litho magazines.

– David Kilpatrick

Magazines, News

NEX-5n – sweet sixteen and expandable at a cost

Posted on July 14, 2012 By David Kilpatrick

Much of my NEX-7 critique was written while also using a NEX-5n outfit. I was lucky enough to find an opened NEX-5n 18-55mm kit missing its mini flash at a very low price, as new. By the time I had finished completing my NEX-5n system with bells and whistles, the total would almost have paid for a NEX-7.

The final kit consisted of the 5n, the FDA-EV1S electronic OLED viewfinder, the ECM-SST1 stereo microphone, and the HVL-F20S flash. The microphone was inherited from my NEX-5 so maybe doesn’t count. In the NEX-7 review, I start by suggesting that the 7 is really more part of the Alpha A-mount system and not the NEX system. The 7 either doesn’t need, or doesn’t accept, any of the accessories shown.

The NEX-7 finally became available after the 5n kit, and for a while both were used together. Just as the 5n can not use a plug-in stereo microphone or an Alpha system flash, the 7 can not use the NEX microphone or the HVL-F20S flash. Although I had one ‘NEX system’ with two bodies, the NEX-7 needed my HVL-F20AM flash originally bought for the Alpha 900 or one of the larger guns, and my Rode Video Pro mic, bought for the Alpha 77.

That’s why I count the NEX-7 as a hybrid, partly ‘big Alpha’ in heritage. It does not integrate with other NEX accessories, and vice-versa. Sony shows no sign of dropping the NEX Smart Accessory Terminal from 3 and 5 series bodies so this parallel range situation continues. If you’ve bought a mic or a GN 20 flash for your 5, it will not be usable with the 7 you plan to buy tomorrow.

The OLED Tru-Finder

Harking back to the wonderful Minolta Dimage 7i and later the Konica Minolta Dimage A2, the FDA-EV1S slightly resembles the fragile hinged EVF of those cameras. Like them, it can be flipped into a 90° upright position or used at angles between, so the eye looks down rather like using a waist-level finder with magnifier, or a Hasselblad 45° prism.

The finder is supposedly identical to the Alpha 77 or NEX-7. It has a different dioptre adjustment, a small slider which has a huge effect for very little travel. It’s not easy to adjust but stays put when set. If you wear and remove spectacles at random, and use the camera with both the naked eye and glasses, it’s one of the least ergonomic adjustments. The eyepiece surround is a semi-hard plastic and not as comfortable or efficient as a larger soft eyecup (which Sony does not make, but would be so easy to add to the system).

The add-on finder appeared to be slightly less clear and smaller to the eye than the A77. The same goes for the NEX-7 finder. The difference seems to be in the optical train, how the lenses are arranged in the ocular itself. It may even be nothing more than an eye-surround and eyepoint issue. The OLED screen is identical but I do not seem to get precisely the same viewing experience. Maybe it’s also a little dimmer by default to conserve battery power.

In use, the way the finder sticks out behind the NEX-5n rear screen is a bonus. I’d love to get an Alpha 580, my wife Shirley uses one and she is blessed with a small nose. I’m not! The 580 eyepiece is set forward of the screen surface by a good distance. It makes a very uncomfortable viewing position for me, and add-on magnifier eyepieces don’t help all that much. The FDA-EV1S in contrast is almost perfect. The NEX-7 is better because my nose can end up beside the camera not touching it.

In practice, I ended up hardly ever using the vertical viewing position. The finder sits forward when flipped this way, and somehow my hand position wasn’t all that comfortable holding the camera and looking down at a normal scene. Instead, I found the flipped-out rear screen and a waist-level camera position more useful. Then, of course, the EVF gets in the way. The sticking out eyepiece which is so comfortably in use can obscure your view of the screen slightly.

Finally, I ended up removing the finder most of the time. It seemed a bit vulnerable, it reduced battery life greatly, it prevented pocketability with my favourite 16mm lens (or at least, felt even more vulnerable in a pocket) and much of the time I realised I was composing on the rear screen anyway. As a result the buyer of my kit got a very little-used EVF.

It is the best EVF made, or at least on a level with the best other EVFs using new technology. I can work with an EVF. Some just can’t and almost need an optical finder. But I’m not sure I would ever fork out well over £200 (or around $300 before tax in the USA) on this accessory again. I’m looking at getting a 5n back into the fold, especially after going back to my raw files. I don’t think this small accessory should cost more than a lens, and the 16mm optical finder is equally overpriced. Sony’s accessory prices generally are a negative customer experience and do not create evangelists for the system.

The vertically-angled finder was tried, but not used, for this shot with the camera near ground level. It was far more comfortable just to use the rear screen.

Enhanced vision

Somewhere out in webland, it’s been pointed out I’m old and that my opinions on EVFs (etc) may be irrelevant. That’s a bit of an own goal, as EVFs have maximum appeal to those with ageing bad eyesight. Old eyes tend to be longsighted, and can’t accommodate to close focusing, needing reading glasses as well as distance glasses in many cases. Older people find composing pictures on rear LCD screens difficult, they may have to hold the camera right at arm’s length (you see it all the time!) and even then, they may not be reading the screen menus clearly or seeing the picture at pixel-sharp quality.

It’s young eyes which work best with phones and compact cameras lacking a viewfinder. They can focus on a screen held inches away from the eye. So can older eyes with serious short sight – just remove your specs, and you are away!

The EVF, especially in the NEX-7 and as an add-on to the 5n, is a boon to these with presbyopia. Suddenly, menus can be seen sharply and pictures composed and reviewed in better detail. The dioptre slider allows correction for the most common range of near and far sight, though it can’t correct for other conditions like astigmatism. For those who must always wear specs, just removing the eyepiece ‘cup’ can help.

As with the NEX-7, one key step is to disable image review when using the finder. It is disconcerting to have the image you have just shot block your view for even 2 seconds, especially when it prevents photography. The effect is different to having the same happen on the rear screen, because while the camera is to your eye, it becomes your window on the world.

Straphanging

Here’s something not often mentioned, and once again, I end up knocking the NEX-7. The NEX-5n and previous models have simple slot-type strap connectors mounted so that the camera always hangs with the lens down, LCD screen up. Even with a 16mm only, this lens-to-the-ground position protects your lens. You can even walk around in light rain and be confident it won’t get on the glass.

The NEX-7 with its magnesium body shell uses the higher end traditional post and triangular D-ring found on the Alpha 77, Dynax 7D, Alpha 700 and 900. And it does not hang lens down like the 3 and 5 models. The strap also gets twisted more easily. No need to say which I prefer. The cheap connector may be cheap, but it has a better function.

The rear screen mounting

The mechanism of the screen on the NEX-5n is slightly better than the earlier 3 and 5, perhaps because the EVF demands it must be able to move outwards in a slightly different way to be seen clearly for waist-level shots. It is my own view that Sony missed a trick, as the EVF on this camera would certainly have allowed a reversible, fully articulated Alpha 55 type screen and its extra thickness, without impeding EVF use.

Because the rear screens of all the NEX models do not twist to allow vertical composition combined with waist or overhead viewing, it makes less difference to me whether they are hinged at all. This probably reflects the emphasis on video shooting, where vertical composition is not needed. For the still photographer, cameras with articulated screens that can orient for verticals and also aim forwards for composing self-timer groups are most desirable. The screen is there. It’s already detached from the body. All that’s lacking is the correct mechanism, even when Sony has shown they have the necessary rights or patents, and can make them.

Refinements

The NEX-5n in addition to a 16 megapixel sensor offers lens corrections (for JPEG), AF correction for Alpha lenses attached via the LA-EA2, automatic sensing of DMF (manual focus taking over from confirmed AF) with magnification and focus peaking, electronic front curtain shutter, true 50/60p HD1080 video, extended sensitivity from ISO 100 (instead of 200 minimum) to 3200 (instead of 1600 maximum), and high-speed 10fps sequence shooting (this not really matched by the focusing abilities of the camera, any more than the 1/50th second shutter lag is).

To the earlier 3 and 5 models, firmware updates have retrofitted focus peaking with or without magnification, and AF correction for lenses with the adaptor. They can’t add lens corrections, DMF, new video modes, better low light and HDR multishot modes, or change the louder double-action shutter with its 1/20th second delay.

The NEX-5n also has a touch screen. I disabled this function from the start, along with smile shutter. Face detection I leave on as this does help with focus and exposure for many shots. Since I’d parted company with my NEX-5n before using the touch screen, I can’t comment on its value. It’s just something I don’t like using.

The only advance I would argue against is the extension of Auto ISO to 3200 with no ability to control the range. Though 3200 on the NEX-5n is not unlike 1600 on the NEX-7, both these settings are too high to allow a perfectly clean image from raw after the best processing. In-camera JPEGs confirm that. I found the NEX-5n working at 3200 in many conditions where I would have been confident of a good image at 800 or even 400. This obliged me to use manually set ISO, or put up with the 3200 quality.

NEX-5n, 16mm, 1/30th at f/11, closest focus, ISO 3200, ACR conversion from raw

100% clip showing how the presence of sharp detail (wallpaper) reduces the appearance of grain compared to defocused tones (right hand side).

How good is that quality? Compared to the 24 megapixel sensor, I’d still say it’s better than a one stop advantage. One of my magazine reviews (f2 Freelance Photographer) was accompanied by a near double page spread from the NEX-5n shot above taken at ISO 3200. It’s certainly good enough for that. However, ISO 1600 is much better. ISO 1600 is so good that in decent light, you could easily be using ISO 200 off a camera of the Nikon D200 or Sony Alpha 100 era, even at 100% pixel comparison. 3200 is amazing, as you can see. But it’s definitely a grainy look where 1600 can almost be noiseless.

If a firmware update could ever achieve it, I’d like to see Sony put a maximum and minimum auto ISO selection into the NEX models, as they have done in the Alpha 77. Failing that just a maximum limit would be useful.

There is no doubt that the 16 megapixel Sony CMOS is one of the best sensors yet made, and a great balance between pixel count and image quality. See below…

16 versus 24 with ACR

Adobe Camera Raw has the ability to open files with a set of fixed size interpolations from the raw data. In this respect, it is better than Lightroom, which can export files to different sizes on demand but shows (at least from my observation) a slightly lower quality. ACR’s image sizes are slightly arbitrary and clearly are not related to the pixel dimensions of the raw image. You can open a 17.5 megapixel or 25 megapixel image from a 12, 14, 16, 18 or 21 megapixel raw.

When you select an enlarged or reduced conversion, the large image preview and editing window reflects this. Your 100% view changes to be a 100% view of the size you are producing. In the case of the NEX-7, the 24 megapixel image size is the largest option on the list. You can not open to 25 megapixels as you can with the NEX-5n. You can reduce to 17.5, 11.2, 6.3, 2.8 or 1.6 megapixels.

The largest size is always 6144 pixels wide (longest dimension), or the native size of the raw file. So a Nikon D800 image which is 7360 pixels wide also shows up with only smaller options, and rather oddly skips the 6144 24 megapixel choice. With ACR, you can not open or preview a D800 raw at 24 megapixels, only at full size, 17.5 megapixels and the smaller choice.

If the raw file has unusual dimensions – 4:3 or square for example – you may get interesting options. The 21.3 megapixel Dalsa medium format backs show a 6144-wide 28 megapixel maximum size output option. The 16 megapixel Kodak MF backs allow 5120 square or 6144 square output, the largest size being 37.7 megapixels. As these backs have no AA filter and are teamed up with unrivalled lenses, a 16 megapixel Hasselblad 80mm Planar shot scaled up to 28 megapixels is hard to tell from a native Nikon D800+zoom lens image. D800E with top grade prime beats either.

Using the NEX-5n (or the earlier 14 megapixel 3 and 5 models) ACR offers 17.5 and 25 megapixel conversion, viewing and export or opening as well as the native size and the smaller ones mentioned above. It is largely my experience using the resizing functions along with NR and sharpening that makes me prefer the 16 megapixel sensor to the 24.

This view was taken with the NEX-5n and 18-55mm at 55mm, ISO 100, happen to end at f/11 though is was intended to be at f/10 (the non-lockable controls of the NEX-5n did this to me far too often).

This view was taken a few seconds later using the NEX-7 with a different (black) 18-55mm at f/10, all other parameters being similar, and both as raw files.

Here are 100% clip sections of both images. The 5n is top, the 7 is bottom. Both files are 6000 x 4000, the 5n image was exported by Adobe Camera Raw to 6144 pixels wide. Both images use Sharpen 25, Radius 0.5, Detail 50 and zero for both luminance and colour NR. In the very subtle low contrast texture of the lamp-post and the definition of the hex nut, the 7 clearly wins but it’s a surprisingly fine margin.

Yes, the difference is obvious. The 7 wins. Think again – for this clip, I’ve put the NEX-7 native size image TOP and the NEX-5n interpolated 24 megapixel output BOTTOM. What is the conclusion? That the lens you use – even the individual sample of the lens used as no two 18-55mms will perform identically – has far more effect on usable image detail than 24 megapixels versus 16.

Scaling images down in size

When I have been editing NEX-7 images at their native 24 megapixels the NEX-5n upscaled image has sometimes looked better overall, and the native size NEX-5n image nearly always wins. The NEX-7 image misses the mark for me maybe 30% of the time. For all ISO settings above 400, I tend to set the ACR output to 11.2 megapixels. Setting it to 17.5 doesn’t lose the granular feel. ACR’s 2012 process (CS6) has noise reduction and sharpening controls which work faster and better than any of the plugins or other raw conversion programs I’ve used.

Checking as I write: for 66 images just processed from the NEX-7, Alpha 77 and Alpha 580 (16 megapixels) I counted that 33 of the 24 megapixel images had been downsized to 3600 x 2400 pixels or thereabouts to resolve issues with noise or sharpness. Not one of the Alpha 580 images had needed downsizing. The 6000 x 4000 shots could, perhaps, have been downsized to the 4912 x 3264 of the 16 megapixel sensor or the 4076 x 2731 offered by ACR; the 3600 x 2400 size is the minimum for image library Alamy. If you send them anything except the sharpest and most noise-free images, you risk having all your work rejected, your submissions placed in a slow queue, or your entire account deleted for repeatedly less than perfect technical standards.

For stock library use, this image was reduced from 24 megapixels to a slightly cropped version just over 9 megapixels. The 18-200mm Tamron lens at 66mm, with the NEX-7, was used at f/8 and the focus was on the gold pan. A 24 megapixels, the degree of softening on the young girl’s face is beyond the acceptable limit; scaled down, it looks natural when viewed at 100%. Shooting with 16 megapixels instead of 24 will give an impression of greater sharpness, or greater depth of field, when checked at 100% though this is an illusion and two prints made at the same size will show no difference.

Working with the 16 megapixel sensor, across the usual range of conditions from daylight to night scenes, hardly any images need reducing in size to hit Alamy’s QC mark. Working with the 24 megapixel sensor, every image has to go through ‘is this really OK at full size?’.

While I definitely want my 24 megapixel Alphas for studio, tripod, architectural, landscape, artwork copying and similar tasks, having sold both the NEX-5n outfit and the NEX-7 if I was to purchase again it would be a NEX-5n with reservations.

Reservations

After using the NEX-7 interface, especially with the settings lock function, it is very difficult to go back to using the 5n or earlier interface. On all NEX cameras the menus are very easy to navigate, consistent, and reasonably fast. But on all NEX cameras except the 7, the rear controller is much too prone to accidental operation. The vertical straphanging reduces this a bit, as it avoids the control touching your clothing. The action is so light that just brushing against a coat or the fabric inside a camera pouch can be enough to change the aperture in A-Mode, the shutter in S-Mode, or the EV exposure correction (requires a light pressure to the bottom of the control followed by rotation).

It would be good if Sony could make a firmware modification which locked the primary function of rear controller rotation – something like a two-second press on a specified button – while leaving the compass-point click/rotate functions (located North, East, South, West or 12, 3, 6 and 9 o-clock on the controller) available.

The final reservation is where I started, about the Smart Accessory Terminal and how it differentiates the 3 and 5 models from the 7. The 7 fits well into any existing Alpha setup, the lesser models are only a partial match. The terminal has appeal. It’s long been thought that Sony could use it to add other functions, such as a GPS module or a wireless flash commander. No such accessories have appeared yet. Does that mean it’s a dead end, to be replaced by 7-style interfacing – or is the 7 a level on its own?

Sony has provided some kind of road map for lenses and would perhaps be giving too much away if they issued a roadmap for NEX development. It would make planning today’s purchases less of a gamble for existing system owners and new adopters if they could.

– David Kilpatrick

To see NEX-5n specs and prices at B&H follow this link. Clicking on our Amazon or B&H search boxes can benefit this site (many thanks to the person who keeps ordering dozens of academic books from Amazon!).

DK's ramblings, Equipment Reviews, NEX System

Gary Friedman publishes NEX-7 ‘beyond the guide’ book

Posted on June 22, 2012 By David Kilpatrick

As Gary says, his e-books do not replace the camera manual and also don’t replace Camera Controls 101 – he writes for the user who already knows which end of the lens fits a screw filter and which end goes on the camera body. His new NEX-7 book fast-tracks into many key features of the camera before backtracking into depth and detail, a great way to introduce owners to making better use of the advanced functions they have bought.

http://friedmanarchives.com/NEX-7

The only downside to the book is the cover, which features a new addition to the long line of bald heads Gary has used for his cover shots (always in the same style) – a penalty for visiting Gary just before the book was going to e-press!

The $26.45 download (PDF, full colour, with additional resources for Kindle and other bw reader platforms) now strikes me as even better value after the last week of wandering through California by car in search of images. The USA is now fairly expensive compared to much of Europe, not affordable as it used to be – and this comes as a surprise, because things like the camera prices at B&H do not give much clue, they are still generally lower. In California at least things like motels (except the most basic), beer, coffee, snacks, entry or parking fees are maybe 50% more than UK costs – so to all our US readers, be assured, now is a very good time to use your NEX-7 skills and take a trip across the pond. You can find an award-winning b&b with one of the best full breakfasts in Scotland for under $75 (£=$1.60) in our home town with a pretty good photographer running it!

– David Kilpatrick

Accessories - 3rd party, DK's ramblings, NEX System

Alpha 77 and 65 Firmware 1.05 released

Posted on March 29, 2012 By David Kilpatrick

A new firmware update further boosts operability of the α77 and α65 Translucent Mirror cameras from Sony.

Available for free download from 29 March 2012, firmware version 1.05 adds several enhancements to both cameras. Alongside heightened responsiveness, it improves operability of both cameras with a wider choice of A-mount optics by Carl Zeiss and Sony.

March 29th – am, the download is not showing up on the links yet – it should be in place sometime during the day.

Shading and aberration compensation

Both cameras can now intelligently correct vignetting, lateral chromatic aberration and distortion for a total of 11 A-mount lenses, including a further six models that are now supported:

SAL-24F20Z (Carl Zeiss)
SAL-85F14Z (Carl Zeiss)
SAL-135F18Z (Carl Zeiss)
SAL-70300G (G Lens)
SAL-35F18
SAL-50F18

Improved responses

Operability of both cameras is further improved with a number of refinements that facilitate smoother, faster handling.

Auto review responses are now quicker, without a ‘processing’ message being displayed
Time between power switch operation and power off has been shortened
Front/rear dial responses are improved

Autofocus responses and precision

Autofocus accuracy is now improved when focusing on scenes with wide contrast difference between objects. In addition, AF speed is improved when using both cameras with the recently-announced SAL500F40G 500mm F4 G SSM super-telephoto lens by Sony. You’ll be able to focus faster on athletes, wildlife and other distant subjects with this bright, high-magnification lens that is available exclusively to order.

Firmware version 1.05 for the α77/α65 Translucent Mirror cameras by Sony is available as a free download to registered owners from 29^thMarch 2012 at:

A77 for PC: http://www.sony.co.uk/support/en/product/SLT-A77/downloads/FW_A77_V105_WIN

A77 for MAC: http://www.sony.co.uk/support/en/product/SLT-A77/downloads/FW_A77_V105_MAC

A65 for PC: http://www.sony.co.uk/support/en/product/SLT-A65/downloads/FW_A65_V105_WIN

A65 for MAC: http://www.sony.co.uk/support/en/product/SLT-A65/downloads/FW_A65_V105_MAC

Cameras (DSLR), Firmware Updates

The EVF future

Posted on March 12, 2012 By David Kilpatrick

At photokina 2010, Paul Genge from Sony pretty much told me that Sony’s future lay in the EVF (translucent mirror or otherwise, Electronic View Finder) models. He was not able to say anything firm. Since then, I’ve spoken to him on several occasions and he has repeated that Sony left all options open but the EVF design was likely to be the way ahead. What he has not said directly to me is that conventional SLR design – Optical View Finder – was off the roadmap.

EVF does away with the need for the finder to be positioned anywhere near the optical axis. Noses can safely hit thin air not a rear screen. Unless you are left eyed. NEX-7 with ocular surround fitted.

Although Sony did not attend Focus on Imaging 2012, the UK website TechRadar secured an interview statement during Focus week, in which Paul appears to have confirmed without ambiguity that the future was EVF-only, and that the forthcoming full frame successor to the Alpha 900 would be an SLT-EVF design. At the same time, we learn that the 70-200mm SSM G and 70–400mm SSM G lens are to be revised for 2013.

We know, from several sources, that Sony is not currently making all its lenses – even the high end ones – in one facility, or in its own workshops. I believe the 70-400mm SSM G is a contracted-out design and that the 70-300mm SSM G has always been made by a third party lensmaker. This is nothing new; the Minolta 100-400mm APO was patented by Tokina and sold to Minolta as an exclusive (no-one else got the lens) and the same company made some if not all the 100-300mm APO lenses. Using different sources means that various types of coating are appearing; traditional Minolta style – the multi achromatic coating, Carl Zeiss T*, Tamron’s BBAR-derived coatings, some Sony multicoatings of unknown pedigree on Chinese SAM lenses, and a new water and oil resistant coating due to be used for the revised 70-200mm and 70-400mm.

This coating is nearly always combined with weather or splash proof design, and companies which have the ability to apply it include Hoya (Tokina, Kenko, Marumi, Pentax), Olympus, Canon, Nikon, and Sigma. Sigma is very significant as they have installed new coating lines recently and they are going through a bit of a subcontracting boom. Their facilities are all in Japan, they are on high ground and were slightly affected by the earthquake but not by the tsunami. They have a long history of building lenses and cameras for Leica, Carl Zeiss, Panasonic, Olympus, Canon/Kodak and interchangeable lenses for nearly all the major names.

If the high end tele zooms are to be revised, weatherproofing and the new coating will certainly arrive along with a synchronisation of lens appearance and finish. But I’m willing to bet something else is involved. The SSM focus system is only partially suitable for contrast-detect operation. It works, on static subjects, but unless some major advance is made in CD-AF it’s lacking the refinement and speed of the AF found in SEL (native Sony NEX) lenses. I’ve tested the 70-400mm on the LA-EA1 with NEX-7, I can work with the lens comfortably on most subjects and the camera is very good at refusing to take the shot until focus is 100% locked.

All that just to get 2X the magnification – NEX-7 with LA-EA1 and 70-400mm SSM G (an operational kit, if not fast) compared to Tamron 18-200mm NEX lens with the correct type of contrast-detection friendly focus motor and protocols.

What Sony must surely want to do is dispose of the SLT (‘translucent’) pellicle mirror and the Phase Detection AF module. It makes most sense to focus, meter, view and expose from one single sensor. In order to do so, lens focus motors need a slightly different control protocol. SSM lenses are already CD-AF compatible, as are SAM onboard focus motor lenses, but they don’t match the NEX system SEL lenses. Sigma HSM and Tamron USD Alpha mount lenses are not CD-AF compatible and do not work correctly on the LA-EA1 adaptor. Upgrading matters most with tele lenses, and they are also most likely to be used in adverse weather for wildlife, news or sports. So my guess is that the upgrade to these lenses will be comprehensive and that it will look forward to possible Sony Alpha bodies with either no SLT mirror, or a movable SLT mirror and choice between PD-AF and CD-AF.

As for the EVF itself, it’s one stage away from being better than a very good optical finder on balance of qualities. Unlike optical finders, the EVF is not susceptible to user eyesight error (incorrect dioptre correction, combined with eye focusing accommodation) and presents the user with a low resolution but otherwise very accurate view of the image focused on the sensor. It can do this at light levels where optical finders become difficult to use, while also presenting a review of the captured image if desired – ‘shot success’ confirmation.

Differences between the ‘identical’ EVF of the NEX-5n accessory finder FDA-EV1S and the NEX-7 fixed built-in version are mostly down to the difference between the 16 megapixel generation 2 sensor, and the 24 megapixel. Response speed, low light noise, quality of colour and contrast are all influenced more by the two very different sensors. User observations that one is better or worse than the other will nearly always be down to this, and variations in settings between the two cameras compared.

There are things you can do on an EVF, such as magnifying a focus point well away from the centre, which simply can’t be done at all with an optical finder and may not always be convenient to do on a rear screen. The fact that EVFs permit eye-level video shooting, and that video is now a permanent feature of the Alpha class of camera from entry to semiprofessional, makes the EVF design change more inevitable.

Paul Genge had a short exchange of information with me when I was considering selling my Alpha 900 and all my frame Alpha lenses (after starting to use the A77). He said I’d regret selling my good full frame lenses when I replaced my Alpha 900 with a full frame model I would just not believe. His message was ‘you wait – you’ll not regret it’. So, I sold my old Minolta-era full frame lenses and bought myself a brand new 28-75mm f/2.8 SAM, Sony 50mm f/1.4 (replacing Minolta vintage), a 24mm f/2 Carl Zeiss SSM, and a 70-400mm SSM G. I kept the Alpha 900 and a few lenses I like which are unique in their function, such as the Samyang 85mm f/1.4 manual, the Sigma 70mm f/2.8 Macro, the Sigma 12-24mm and an old 16mm f/2.8 full frame fisheye. Instead of getting out of full frame, I re-invested in it.

I’m expecting the Alpha 900 replacement to be either an SLT design like a scaled-up A77 with 36 megapixels, or a second generation hybrid SLT design with a mirror you can raise to use CD-AF or manual live focusing. I’m hoping that it will appear with a new 28-75mm, 24-70mm or better midrange f/2.8 with improved SSM, weatherproofing and new coatings like the 16-50mm f/2.8 DT.

– David Kilpatrick

Cameras (DSLR), DK's ramblings, NEX System

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