Tag: telephoto

Sony E 70-350mm f/4.5-6.3 G OSS

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The neatest solution for sharp long tele shots on Sony A6000 series APS-C

  • Excellent full aperture performance from 70 to 350mm
  • OSS stabilisation works with every Sony Alpha E-mount APS-C body
  • Perfect for movies with A6000, A6300, A6400 without sensor stabilisation
  • Compatible with all NEX and Alpha E-mount models from 2010 on
  • Enhanced OSS with A6500, A6600
  • Compact and light weight
  • G series optical quality, Custom Button on lens, AF/MF and OSS switches on lens
  • Lens lock at 70mm to prevent zoom creep
  • Single extending zoom barrel
  • 67mm non-rotating filter thread
  • Bayonet lens hood included
  • Moisture and dirt resistant multicoating
  • Coverage allows use on full frame bodies with larger than APS-C crop

This lens was purchased in October 2019 and the review is based on nine months of use on Sony A6500 (ILCE-6500), A6300 (ILCE-6300), A6000 (ILCE-6000) and A7R MkIII (ILCE-7M3). Review by David Kilpatrick.

A solution for practical photography out and about – worldwide

I had been using the Sony FE 70-300mm f/4.5-5.6 G OSS full frame tele zoom on my A7RIII for over a year. This lens is very sharp wide open and benefits from the best close focusing in its class at 90cm meaning a scale of 0.31X at 300mm. It weighs 854g and has a double tube zoom extension. As you can see above this lens (left) is only a few mm longer physically than the APS-C 70-350mm (right) but the extra barrel heft, 72mm filters and much larger lens hood meant it needed a bigger kit bag, and proved harder to change quickly when swapping lenses.

The 70-350mm for the smaller image sensor proved if anything even sharper, right to 350mm. Lenses like this often prove soft at maximum focal length and maximum aperture. The 70-300mm at f/5.6 is a third of a stop faster, but to get it as crisp as its newer little brother, it needs to be set f/6.3 – a match in speed. You can see above how much bigger the full frame lens becomes at 300mm. The 70-350mm only weighs 625g but its very fast and silent XD Linear Motor AF can only get as close as 1.5m at 350mm, 1.1m at 70mm. The maximum subject scale is 0.25X.

I knew the 70-350mm would be my choice for travel and daily use with my A6500, but I was going to miss that closer focus. The full frame lens has an AF range limiter, full range or 3m to infinity but oddly no 0.9m to 3m choice. The APS-C lens has no limiter but I have never missed it and rarely used it on the 70-300mm.

My big question was – can I do without the 70-300mm and use the 70-350mm on my full frame bodies?

Cropping power, sensor resolution and coverage

Tests quickly proved that distortion and vignetting kick in fast beyond the crop format field of view, but sharpness remains good and depending on focal and aperture you get much more than APS-C. You can almost get a full frame at close range.

This mushroom (about hand sized) is at 350mm and f/11 on the A7RIII, and you can see the mechanical vignetting cut-off left and right. It’s caused by the lens rear baffle not the optical design – the lens could be modified to remove this, but it’s not advised.

At 70mm on a very demanding subject the distortion without lens profile, on full frame, is extreme (left) but with Lens Profile correction applied at 200% plus -8 Manual, and similar vignetting adjustment, Adobe Camera Raw or Lightroom can almost handle it. On a neutral subject like a portrait with a foliage background the coverage would be fine. More to the point, manual crops much larger than the 16 x 24mm you could expect from an APS-C lens are fully usable.

But why use a full frame body? Unless you own a Sony A7RIV (61 megapixels) you won’t actually get a more detailed distant animal or bird. The modest 24 megapixels of all the current APS-C bodies beats the 18 megapixel crop format of the A7RII/III. Canon users have much the same position, their smaller APS-C (1.6X not 1.5X) and 28 megapixel resolution matches 60 megapixels on 24 x 36mm. The advantage of full frame is that you may catch more of your subject, your framing and tracking active subjects enjoy more leeway. If your subject stays in position the smaller sensor can capture finer detail – and this is where the 70-350mm excels.

This is a good example. At 198mm on the 70-350mm on A6500, it’s the same composition I would have had with the A7RIII and 70-300mm at 300mm and that would have produced a larger more detailed image. There’s only a real benefit to the 70-350mm on APS-C when you’re near the 350mm end. Did I keep both? No – I already knew I wanted a much faster but still compact zoom for the full frame kit, and the Tamron 70-180mm f/2.8 was coming in six months’ time. So I sold the 70-300mm and decided to use the A6500 with 70-350mm for all longer tele shooting.

From the start it proved a very capable combination.

Fast lenses are not as important now

Mirrorless cameras with phase detection autofocus, good high iSO performance and better resolution electronic viewfinders have made wide aperture lenses less essential for low light. The linear motor focus of the 70-350mm rarely misses a shot regardless of conditions. One of my first shoots was a music festival, where this lens allowed me to work from the very back of the hall and never get in the way of the audience.

Processed from a raw file at ISO 6400, this shot of Steve Byrne performing was taken at 350mm wide open at f/6.3. The same on full frame would need a 525mm lens at f/8 and ISO 8000 (a direction Canon is taking with their new 800mm f/11 IS STM for the R mount – the working aperture no longer matters much if the viewfinder stays bright, AF is accurate and there’s not much noise at high ISO settings).

The long reach in a concert hall is one side of using a 350mm on APS-C. Here’s another – the lens may only achieve a quarter life size and need you to be 1.5m away at 350mm, but 0.25X on a 1.5X factor sensor is 0.375X in ‘old macro’ terms. Not only that, the ISO 2500 used here is about the same in grain or noise terms as an ISO 400 film and the stabilisation of this lens on the A6500 is as good as you get. A 1/125s shutter speed did not prevent tiny hairs on the caterpillar’s head being sharply resolved.

This lens is far better than the 18-200, 18-300, 18-400 or 16-300mm I’ve used on a variety of DSLRs for long APS-C reach. It’s free from the residual aberration which demands you ‘stop down one’ to clean up the long end image. Combined with Sony’s PDAF it handles a concert or low indoor light as well as an ƒ2.8-4 on a conventional DSLR.

Compare this with a 100-400mm for the same format

For the sake of 50mm at the long end – a difference of only 12.5% in image scale – the excellent Fujifilm Fujinon XF 100-400mm f/4.5-5.6 R LM also gives a half to a third of a stop more light transmission in its longer range. But look at the cost! It is twice the price and weight, and you can see the size. Gains – a near-apochromatic performance, matched 1.4X and 2X converters available (not an option for the Sony and never likely to be). Losses – only 0.19X close-up scale. It’s remarkable how much difference there is in the physical aspect of these two lenses. I have used both and in practice they are equally sharp on 24 megapixels.

The Sony 100-400mm and Sigma 100-400mm are both full frame lenses and much larger. The 70-350mm is unique as far I can tell, no-one else has a lens like it. It also answers one of the major criticisms of the original E-mount APS-C system, the lack of any lens longer than 210mm and that only in a 55-210mm design best described as consumer grade. I’ve actually found it pretty good for the money – but it’s not much money!

Sony 70-350mm G OSS image gallery

Rather than write much more, I’ll leave you with this gallery. I have reduced the file size but where you see an enlarged section clip along with the full frame – well, you can judge for yourself.

Sony 70-350mm G OSS verdict

If you own any of the APS-C Sony bodies, from the NEX-3 and 5 of 2010 onwards, this lens will not disappoint you. The effective OSS image stabilisation means that even if you prefer to compose and shot using the rear screen and hold the camera away from your body you’ll get sharp stills and steady movies. It’s a big step up from the 55-210mm and much more affordable than, say, a 70-200mm f/4 G with 1.4X or 2X converter.

You may have to control colour fringes in some strong backlight situations with blur when working from raw files, as it’s not an apochromat just a regular very good tele zoom. However the resolution reflects advances in design over the last decade. It’s also a very handsome looking black lens with its silver G logo and designation contrasting with white markings. It feels robust and the zoom and manual focus (when needed) are smooth. The metal bayonet is a tight precise fit on my A6500 and A7RIII, a little less so on my A6000 with its older four-screw type body mount.

I can carry this lens all day without even realising it’s there, round neck or shoulder – and there are not many lenses covering this range you would want to hang on a strap round your neck.

You can support my reviews if you check these links for availability and price:
Amazon UK – didn’t have any stock at all at the time of writing – https://amzn.to/30ZC4Ck
Park Cameras UK – https://tidd.ly/3jLHbP7
WEX UK – https://tidd.ly/3hKRhhA
B&H USA and Worldwide – https://tinyurl.com/y6cguvpo

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Lenses - E mount, Tests / Reviews

Tamron’s super value 70-300mm USD on the A7RII

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SONY DSC

If you want to get a 70-300mm which works on the Sony A7RII, the A7 series body with the best on-sensor phase detection/contrast detection mix, your first choice should be the new Sony FE 70-300mm f/4-5.6 G OSS. But that demands a wallet opened with £1,150 (UK SRP) in it. In return you get a rare specification mix including focusing down to under one metre and almost a one-third life size image scale, without needing any special macro range.

For those who own either an LA-EA3 or LA-EA4 Sony adaptor, there’s a choice of A-mount lenses. The older Sony 70-300mm f/4-5.6 SSM G will work OK, but the current SSM II version is tuned for the on-sensor focusing system. Both work on the LA-EA3 with its SLT-mirror free design, and focus to a decent 1.2m. The low-cost Sony body-drive AF f/4.5-5.6 75-300mm will only AF on the LA-EA4 and is probably best ruled out.

The same goes for Tamron’s body-drive focus Di Macro, about the lowest cost such lens you can buy, and Sigma’s standard and non-APO Macro designs. For the LA-EA4 only, the Sigma 70-300mm f/4-5.6 APO Macro DG is actually worth buying as a good example can usually out-resolve any other lens of this range, but it’s slow and clunky. It focuses to under 1m and half life size scale but like the Tamron Di Macro does this using a separate close-up range you have to switch in to, only usable between 200mm and 300mm zoom setting.

This leaves two 70-300mm independent lenses with in-lens focus motors. The Sigma 70-300mm f/4-5.6 OS DG is again very good optically (a fair match for the Sony G original) but it doesn’t use an HSM focus motor. Instead it has a motor more like a Sony SAM drive. As a result, it will only focus quickly on the LA-EA4. It can’t handle on-sensor PDAF.

The Tamron SP 70-300mm f/4-5.6 Di USD can. It has an Ultrasonic Silent Drive, and this is very close in design to the Sony G SSM. Because the lens dates from 2009, most test reports have been based on DSLRs and not many Sony A7 system owners have bothered to consider it. At the current price in the UK – even the official SRP is only £275 but normally discount to a pre-VAT price of under £200, or if you like, $280 – it’s an unprecedented bargain for an advanced lens using low and extra-low dispersion elements.

SONY DSC

You should not be surprised at its size, because it’s almost identical to the Sony G. Same weight (within 5g), same 62mm filter thread, same rear internal focus with plastic window for the scale, same forward zoom ring and single barrel extension. It has one more element, being a 17/12 design rather than 16/11 like the Sony, and it lacks the control buttons and focus range limiter controls. It’s also a quarter to a third of the price.

SONY DSC

For me its major shortcoming is the 1.5m close focus, just too far away (nearly fell down stairs trying to get far enough away to focus when testing it, I’m just not used to lenses which force you back this way).

SONY DSC

What counts I guess is the optical performance, and here the Tamron still does not let you down despite being a seven-year-old design. Like the Sigma OS, it is a step above any of the previous 70-300mms including Nikon’s VR and the Canon IS design and when I tested it back in 2009 it matched the Sony G SSM even wide open at 300m. What it did not do was focus accurately on my DSLR bodies, needing AF calibration adjustment on the A900 and missing the mark on the A700 and A580. It was fine on the A55.

SONY DSC

The lens coating is pretty effective and the lens front rim, like Sony’s G, has no lettering to reflect off filters. It also has an effectively black-out inner baffle and zoom mechanism. Combined with the super-deep lens hood (very much like the monster you get with the Sony G) the result is a flare-free optic you can use in almost any light.

SONY DSC

The rear mount is a high quality metal A-mount as expected, and on my LA-EA3 the whole assembly was firm and felt unstressed.

Tamron kindly sent me a lens to update my earlier testing when this design was new. I wanted to see one thing – did the USD drive allow PDAF on the A7RII with the LA-EA3? If it did, this bargain price but advanced lens would be a possible 300mm range solution (and also, though I can’t test this, on the A7II and A7SII – I’m pretty sure it will not play well with pure contrast detection on the A7R, as on my A7 it will focus at all focal lengths and in low light but can take several seconds of hunting and fine tuning in small steps).

Fitted to the A7RII+LA-EA3 I found it snaps into focus really fast, able to use either wide area or centre AF with much the same speed as native E-mount lenses, and activating the ‘green square’ focus point display. It was very poor using moveable Spot AF (unusable in low light), and the Zone AF option is greyed out. So, it can’t access all areas, but for regular shooting it’s good.

At focal lengths over 150mm, it can be spooked by starting completely out of focus. However, once the lens is not extremely defocused it acquires and tracks rapidly. The full time manual focus over-ride can help set it up before you use AF. In very low light with low contrast targets, at 200-300mm, even prefocusing manually may not prevent a long searching process or AF failure. However, in normal daylight with regular 3D subject matter it’s useable.

Since owners report that even Sony’s own lenses encounter similar issues – the 90mm f/2.8 G OSS Macro is known for hunting and taking time to lock on – it’s an issue more to do with the way the on-sensor focus works than anything else. It’s also much better than, for example, the Canon 70-300mm f/4-5.6 L used on the Sigma MC-11 or Commlite adaptors. That just gives up towards 300mm.

The Tamron has variable bokeh qualities. Foreground bokeh can be untidy and contours just beyond the plane of focus can be harsh. Totally defocused detail in both foreground and background can look very smooth. It has a nine-blade circular aperture, just like the Sony G A-mount, and I’d say overall image look was uncannily similar. The exact look depends on the focal length, working distance, aperture and placing of the foreground and background detail.

rhododerndron-300mm-6p3

Purple rhody at f/6.3 and 300mm – not too bad overall!

colourmatch-300mm-f6p3-300mm

Matching person in the distance – again, not bad, with a pleasant three-dimensional look. Maybe I should do a version in black and white…

As for this lens not having VC (Tamron’s OS/OSS) I can only say it doesn’t need it when Sony’s 5-axis sensor stabilisation does so well. Here you can see 1/30s wide open at 300mm indoors at ISO 3200. Note also what CA or fringe occurs. It’s pretty good.

300mm-iso3200-30th-wideopen-SSI

As for handling 42 megapixels, which didn’t exist when the Tamron was designed, there doesn’t seem to be a serious problem. Here’s a quick shot of Scotland’s relationship with the USA and Europe…

saltire-300mm

And here, frozen by 1/500s shutter speed at the realistic aperture of f/7.1 and ISO of 200, is a detail at 100% size. I’m generally happy with a 70-300mm lens if you can see the weave and the stitching on our town hall flags at 300m, 2/3rds of a stop down from full aperture, reproduced on a 1.5m wide print.

300mm-detail

I’ll test the lens further and add a gallery of images and any other comments, but I think that this is the only non-Sony lens of this range which really works well with the LA-EA3 (and of course, extremely well too with the LA-EA4 given AF calibration).

The only slight incompatibility is that the camera/adaptor gives the lens the identity of the Sony 70-300mm f/4-5.6 G SSM, this is what appears in the EXIF. This also means that the camera will invoke an auto profile for the Sony lens, and handle the focusing as if this was the Sony lens. It also loads the built-in profile for the SSM G lens in Lightroom/Adobe Camera Raw. This seems to work just fine. Without the profile enabled, the flag shot for example shows a stop or more of vignetting which is a relative weakness of the design – exactly as it is with the Sony. The new FE G lens with its 72mm front element as opposed to the 62mm of the Sony G, Sigma OS and Tamron SP designs can be expected to have much less full aperture vignetting.

Please note that this report refers specifically to the A7RII as a host body – as stated, it’s not useful on the A7 and I also found it’s not good enough to use on the A6000 with LA-EA3 (fine with LA-EA2 or LA-EA4). It will eventually focus but with too much hunting and missing.

– David Kilpatrick

If you’d like to check availability or order the lens, here are my affiliate links (may help pay for the site, don’t cost you anything):

Wex Photographic, UK – £239

B&H, USA & World – $449 ($100 rebate to June 30th)

Amazon UK – £239 at time of publication

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Accessories - 3rd party, Equipment Reviews, Lenses - Alpha Mount, Sony Digital Cameras

Crop or cram? Pixel density versus the big view…

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The Alpha 900 offers an unrivalled view through its 100% prism finder. The extra brightness, as well as the size and clarity, make most subjects far easier to photograph well. For some users, however, the full frame camera brings a disadvantage in terms of reach and resolution. You need lenses 50% longer (and thus twice the size, and four times the cost!) to fill the frame with the same distant sports and wildlife subjects. I don’t need to remind anyone how popular these two subjects are with amateurs, and sometimes, how important to professionals.
Continue reading »

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Cameras (DSLR), DK's ramblings, Equipment Reviews, Lenses - Alpha Mount, Photo Techniques