A7RII versus Pentax 645Z

At a workshop given by John Denton for The Flash Centre, with Elinchrom lighting and Pentax 645Z demonstration. model Laura posed for a comparison pair of shots using the Pentax with 90mm macro lens and the A7RII equipped I regret to say with a much inferior lens, the basic 28-70mm.

To compare the quality bear in mind that the Pentax was ISO 200 at f/5.6 and the Sony was ISO 400 at f/8 as I felt it necessary to stop down – I should not have, as I had forgotten than the 28-70mm is sharper at f/5.6 than f/8, which introduces local unsharpness to the left hand end of the image (landscape) and did with all three samples I have used. This means the model’s face is smeared on the Sony shot, because this lens can’t produce a sharp image under these conditions in that part of the frame. Yes, I’ve had some OK results, but this was the first time I used the 28-70mm on the A7RII. It is OK on the A7II and A7S, as the blur is not so visible at those magnifications. It’s really not good on the A7R or A7RII.

So, please examine everything except the face…

This is the Pentax shot. Despite the matched for theoretical exposure, it is much darker and the ISO 200 is only equal to ISO 100 in Sony terms. Daylight balance set for the flash, Adobe Camera Standard profile since no other is available.

Here is the full resolution link to 146MB (if opened or downloaded) original:

http://www.pbase.com/davidkilpatrick/image/160895282

This is the Sony shot. The Camera Portrait profile in ACR gave much improved skin tones, so I’ve used this. The pBase link appears to have scaled the images proprotionally, so the 42Mp image is correctly smaller than the 50Mp.

Here is the link to the 120MB original:

http://www.pbase.com/davidkilpatrick/image/160895292

Enjoy – John teaches retouching and has set up deliberately harsh lighting to create over-sharp skin and too much detail, which he then expertly ‘fixes’. My shots are un-fixed. His workshops are worth every penny as he delivers an entire set of notes and his Photoshop actions to all delegates.

– David Kilpatrick

Frank’s a definite Alpha Male

We shall be sending Frank Doorhof one of our original and rare Alpha Male T-shirts, in black, though I’m not sure we have anything quite large enough to fit him – which goes for his personality too. He’s a great workshop presenter, overcoming technical problems by just cracking on with whatever will work best. At Edinburgh for The Flash Centre’s full day fashion seminar with Frank on May 24th, the last thing I expected was to be using the same camera as Frank. All workshop leaders use Canon, right?

Frank now uses Sony Alpha 99, and he had a lot to say about it. Since we already know the benefits of the Alpha system and the current Sony full frame 24MP sensor with its extreme 14-bit dynamic range, most of what he said was not new, but it’s rare to hear a course leader extol the virtues of a system which not one of his delegates (apart from me) was using. He did rather talk down the value of CZ lenses (while using a 24-70mm CZ) and praised the quality of his vintage Minolta 85mm f/1.4 and 35-200mm xi, but I can’t argue with that as I’ve made similar decisions. Indeed, the 35-200mm owes much of its reputation to results we published seven years ago. I was beating him at his own game by using my SAM 28-75mm f/2.8 – cheaper by half than the CZ 24-70mm, and extremely sharp.

doorhof-church

We had a rare sunny clear day in a run of mixed weather, though it was cold and windy on the roof terrace of the Glasshouse Hotel in central Edinburgh. The location provided strong backgrounds and details. Simon Burfoot and Chris Whittle from The Flash Centre brought along the Ranger (battery location) and Ranger Quadra (lightweight version) flash systems with Elinchrom Skyport wireless triggers. Of course, in the past if you turned up to a workshop with an Alpha body, you were unable to use the wireless flash connection unless you also remembered to bring a standard hotshoe adaptor. With the A99 (and NEX-6, RX1 and future models) the new Alpha multi function accessory shoe works directly with triggers.

Frank put everything into using just one light source, and used no reflectors, aiming instead for dramatic lighting by underexposing the main scene but lifting his model subject Nadine by local flash. This was achieved with the 44cm rigid square softbox, newly re-introduced to the Elinchrom system (I have used the original grey one for over 20 years – you only need to buy these expensive accessories once in a lifetime). Fitted with a honeycomb but no diffusing scrim, the single lighting head with this light shaper put a tightly controlled pool of light on to his subject. Though it’s easy to use digital SLRs as a pre-test light metering and flash balancing method, Frank works with a Sekonic flash and ambient light meter able to take incident, reflected and partial spot readings. It is very similar to the discontinued classic Minolta Flashmeter IV/V, with the same 1/10th stop accuracy and display of contrast and memorised values. If I was doing this type of work, I would use my Flashmeter IV, but I would also use its calibration function to match it to specific ISO settings on the A99.

doorhof-setup2

Frank’s wife Annewiek used multiple video cameras to film the workshop, as Frank provides his on-line tutorial material through Scott Kelby’s training site. Here you can see one set-up as he explains how he’s seeing the location, addressing the used of the glass window wall, avoiding unwanted reflections, placing Nadine in the shade then adding the flash to match an underexposed daylight scene. To achieve the required settings, he used ISO 100 at apertures around f/16 to f/22, with a 1/160th shutter speed, and mechanical first curtain shutter. I also followed these settings, which are not kind to sensor dust spots. Anyone using a Nikon D600 would have been in serious trouble! Even my ‘clean’ A99 which never needs any spot removal at my regular optimum working apertures between f/8 and f/13 showed a few visible spots at f/18. I would have used ISO 50, which I consider to be an advantage of the A99, and trusted shutter speeds to 1/250th with this camera for flash sync. But Frank was dealing with photographers some of whom had cameras incapable of shooting at less than ISO 200 or synchronising with studio flash at 1/250th without a slight second curtain crop to the frame. It would not have been fair to demonstrate using the advantages of the Alpha 99…

I did have in my bag, and normally carry, a 4X ND filter. With the Alpha 99, fitting an ND filter has absolutely zero effect on the viewfinder brightness, or the quality of view in sunlight. After all, sunshine with a 4X ND is just like a cloudy day in brightness, and you have no problems on a cloudy day. You can work with an ND just as ‘transparently’ as you can use an UV filter. An alternative would have been to use a polarising filter, which can also enhance the dramatic ‘dark sky – bright subject’ mix. However, Frank wisely kept clear of this. Polarisers have some pretty horrible effects on fabrics, skin and hair. Use them on portrait or fashion shots only with great care. Digital sensors are usually able to do deep blue skies without help.

doorhof-elinchrom44-web

Here’s the Elinchrom Ranger head as used. Frank asked delegates to restrict themselves to three shots per situation, a request generally ignored. I took some before the flash had recycled, to show the effect of the scene without flash, and with flash.

doorhof-set2-shot-web

This was my ‘take’ on this setup and it’s probably different from most as I used a 12-24mm Sigma HSM lens at 12mm. Now Frank did not explain to the photographers how he was using his electronic viewfinder, and I didn’t ask, but I’m sure he had it set to over-ride manual setting gain, as he was shooting on manual (M) with a degree of underexposure that would have made the finder extremely dark. I didn’t change my setting and though for all the other situations I was able to compose well enough, for this set-up my EVF showed nothing but solid black where the model was. As a result, I did not see what an ungainly shape was made by the extreme angle of the 12mm lens for a couple of poses.

alpha99-noview

The left hand side is very much how my finder looked. I don’t like this result, but I could not tell until after it was taken. Nadine was changing poses rapidly. This is one case where the optical viewfinder of my Alpha 900 would have been a better choice.

If you have a Sony/Minolta wireless flash set-up, you can overcome this whole problem. Your remote flash would perhaps need a softbox, or more realistically a small umbrella to match Frank’s localised soft flash and also receive the control signal from the on-camera flash. You would simply set the remote flash to Manual power not TTL, set the A99 (or other EVF DSLR) to Aperture Priority (A), set f/20, and rely on the flash’s auto communication with the camera body to set 1/160th flash sync and ignore the ambient light. You can also do the same with a slave cell triggered by a small camera top unit converted to invisible IR using a gel filter or old transparency unexposed film-end. You can not do this with the sync cable (PC socket) or flash triggers, as these connections do not tell the camera there is a charged flash fitted, and set the shutter speed.

Elinchrom! We need, for Sony and other EVF or LCD screen-only cameras, a flash trigger designed to provide a signal to the pin which the camera’s own flash system uses to auto-set flash sync speed when using Aperture priority. When this is live, the viewfinder brightness is set to auto gain regardless of the exposure mode (PASM) used.

For his first set-up, Frank was actually shooting full lengths from a distance with Nadine making a small element in a large view. I liked the structure she was posing under, and prefer in general to get pictures which are not a copy of the course leader’s work. Although this was also slightly underexposed for the background, I had no problem with the EVF when the subject was in a normally lit area.

doorhof-set1-shot-web

You may say, the subject was in sunlight anyway, so why use flash? The dual lighting gives a filmic look, like a movie set lit in Californian sunshine (and Scotland’s legendary blue skies complete the illusion). This essentially sidelight from the sun, with a frontal fill you can see most clearly on the fingers of the left hand glove.

For a further set-up, Frank moved to the roof terrace view over the north of Edinburgh towards Leith and the Forth (first image on this page). He had demonstrated sets suitable for normal to wide angle lenses, using the 24-70mm, and switched to the 70-200mm f/2.8 Sony SSM G for a different relationship between the model and the background.

doorhof-churchview-noflash-web

This was the view without flash – not a bad set-up as it stands. When processing my images, I found that the in-camera standard JPEGs of the A99 handled the red of the dress better than almost any setting or camera profile using Adobe Camera Raw. Colours like this are a good case for trying alternative raw converters, such as DxO Optics Pro or Capture One Pro. Their camera profiles are generally closer to the in-camera conversions than Adobe’s. Frank demonstrated how to use the MacBeth ColorChecker Passport colour patch target and its camera profiling software to create an on-the-spot profile for better ACR/LR conversions.

doorhof-churchview-flash-web

This is the shot with flash, again, in-camera JPEG sRGB. AdobeRGB would retain more potential detail in the red, raw conversion to 16-bit using ProPhotoRGB the maximum. But for that you also need something like a Eizo 10-bit monitor with a matching video driver, and no Apple Mac made comes with that. Build yourself a tower system and it’s just about possible to get 10-bit colour… but not using Mac OSX! My monitor is a regular old 27 inch iMac and if it’s 8-bit it’s having a good day. The colour looks lovely, but accurate it certainly is not. I don’t mind as 99% of all the screens any of my images will ever be seen on are no better, and the printed page is far inferior. Putting the above pictures into print would almost guarantee the differences you see here are lost.

smallscreeneducation

Because the Glasshouse’s rooftop function suite has a white translucent fabric roof, the overhead projector could not be used. So, Frank sat down with his laptop and the photographers. Later on in the day, the group moved to an inside room, and he demonstrated a series of processing steps in Lightroom with special attention to the use of plugins producing Clarity, pseudo-HDR and ‘image look’ and to fashion and beauty retouching.

To read more about Frank’s work, visit his own website www.frankdoorhof.com or follow him via Kelby Training. He regularly does workshop tours. I’ll be reporting on some of his views and hints for professional photographers, specifically, in the June 2013 edition of Master Photography magazine (you can subscribe here for this 10X a year magazine which we also produce).

For more information on the Elinchrom flash system, Skyport wireless triggering and battery powered Ranger/Ranger Quadra location flash, see The Flash Centre website.

– David Kilpatrick

Gary Friedman workshops in UK, September 13-16th

Gary Friedman, who is well known for his excellent e-books on the Alpha system (new one just out, Alpha 37 and 57) lives on the sunny, foggy, funky coast surrounded by surfing dudes and dudesses, just south of the vast conurbation of Los Angeles.

But having several million photo enthusiasts on his doorstep is not enough. He’s hitting Britain’s shores in September to give one talk near Portsmouth on the 13th (the commute will be a refreshing experience after the multilane highways of home) and two full day seminars in Kingston-on-Thames (15th and 16th). We are, I’m afraid, responsible for Gary locating these in the little-known but lovely Antoinette Hotel, a conglomeration of former houses in a quiet residential area only a short walk from the Thames and some rather good waterfront pubs. It has a large car park, you can walk from the station, and you can even get there by riverboat if you can work out how on earth to plan the journey.

Whatever the case, Gary’s talks are not to be missed. He has agreed to join us as US Associate Editor on a new publication venture – Cameracraft, a quarterly magazine which may follow in the wake of Photoworld, but has no affiliation to camera brands or clubs. You can find a subscription link to Cameracraft, which should be in print just in time for Gary’s dates, on our left hand sidebar (there’s much fuller info in our Links).

So, check up on Gary’s web page – even his taster and programme for the seminars can teach you more than you think.

Gary Friedman photo trip to Latvia

We are announcing a very unique trip for budding travel and reportage photographers out there. This is a “Photo Expedition” – different from a traditional tour package – put together by professional photographer and camera system e-Book manual author Gary Friedman (who runs the stock photo website www.FriedmanArchives.com ).

Latvian Church

Says Gary: “Photo Expeditions are guided travel programs which cater to the unique needs (some people might say “eccentric needs”) of photographers. Getting up at 4:00am in order to catch the sunrise is not out of the ordinary. Taking you to landmarks only when the light is right makes perfect sense to us. Taking you to places off the beaten path and leave you free to roam and photograph a fishing village is exactly our itinerary. And you’ll be with fellow photographers who love to travel, make new friends, and tell the story via pictures. The whole tour is based on the premise that nobody ever took a National Geographic quality photo from the window of a moving bus.

“The event will be taking place in the beautiful Republic of Latvia on July 13-20, 2008. UK readers can book low-cost flights from Ryanair, typical costs for the return journey from Stansted and various other airports to Riga are around £130-£200 on the dates involved, including taxes.

“Where…? Not many people have heard of Latvia, but it was one of the most beautiful of the Soviet Republics. You can see pictures and read a detailed itinerary at
http://friedmanarchives.com/expeditions/latvia/ .
“The trip is all-inclusive – once you get your self to Riga, we take full care of you from start to finish. We have room for only 14 people, so if you’re thinking of going, signing up sooner is better than later!

“I feel especially proud that we were able to secure as our “home base” one of the best retreat properties in Latvia. From the website:

This property was once an exclusive retreat for KGB VIP’s where satisfaction was guaranteed for the Soviet elite: Deer were tied to a tree so old Generals could shoot it, and divers would secretly hang fish onto submerged fishing hooks to please their high-ranking vacationers.

“The new facility built to European standards and situated on Valguma lake where you can sit at breakfast and enjoy the view of the hills and woods.

“If you’re even thinking you might want to join us, please send me an email at [email protected] to let me know your intent and I can let you know when spaces are about to run out. This is going to be a fun trip!

“Check out the details at www.FriedmanArchives.com/expeditions/latvia and let’s hear from you!”

Edinburgh Photoworld Club day

We have a Photoworld day in Edinburgh on February 10th 2008, to which all Photoclubalpha registered members are welcome (it is strictly by prior arrangement, so please do not turn up on the day). It starts at 10.30am and ends around 4.30pm, and will be held at Edinburgh Photographic Society. There is a small fee for refreshments. Details follow.

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