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Sony A7 and A7r Images and Discussion
  
 
sebboh
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p.3 #1 · Sony A7 and A7r Images and Discussion


philip_pj wrote:
I can't access the main a7/a7r thread - no, not the weepy hand-wringing one regarding wide angle M lenses and their travails on this most modern of all cameras - but the main one concerning the cameras themselves...



it happened again. replace the "topic" in the url with a "z" to be able to see posts beyond the first on that last page. i thought fred had tracked down the problem...



Nov 17, 2013 at 10:17 PM
Edgars Kalnins
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p.3 #2 · Sony A7 and A7r Images and Discussion


uhoh7 wrote:
"My point here is not to say which is better. There are many other factors to take into account (number of blades, build quality, ease of use ) But here are 3 of the best 35mm lenses the world has ever know and the Sony/Zeiss 35mm F/2.8 Sonnar is easily as good on the MTF charts."

Dear Susan weighs in


Are sony zeiss MTF charts based on real lens test now? If not, the article seems pointless, doesn't it!?



Nov 17, 2013 at 10:36 PM
Tariq Gibran
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p.3 #3 · Sony A7 and A7r Images and Discussion


Edgars Kalnins wrote:
Are sony zeiss MTF charts based on real lens test now? If not, the article seems pointless, doesn't it!?



No, Sony Zeiss MTF's are calculated, which should be obvious to anyone just by looking at the MTF (because central/0 values at 100% are impossible!). A curve that starts at 100% at F8 is not of this world. Diffraction alone would prevent such a real world measurement. I believe someone suggested dropping everything down by 20% at least to get a rough idea of performance (I guess that's if manufacturing tolerances and so forth are ideal).

Edited on Nov 17, 2013 at 10:59 PM · View previous versions



Nov 17, 2013 at 10:55 PM
jcolwell
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p.3 #4 · Sony A7 and A7r Images and Discussion


I bet the line thickness on that Zeiss MTF graph spans the transition between real and unreal performance.


Nov 17, 2013 at 10:58 PM
philip_pj
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p.3 #5 · Sony A7 and A7r Images and Discussion


I rather like the passionate tone of the dear susan person, and MTF is a valuable tool, as a 'guide', so we can talk about Leica's mid field dips, for example. What inevitably happens in the absence of consistent methodologies, is that people will use whatever is around. This happens with all kinds of data. Sony are far from the only offenders in using 'promotional' MTF data.

The thing the market really needs is something comprehensive - with an optical bench for infinity testing and and flexibility for near distance testing and outcome reporting, based on a good sized sample of all lenses. The Imatest is another which has some controversy attached to it but is also still very useful.

Aberration analysis (beyond distortion and vignetting, the two least troublesome aberrations) would also be very helpful, as would actual images that show lens problems. Roger Cicala is on the case, here is a recent comment made on his site and a link to the article above it:

'The latter lets us take out paper and pencil and make a map of field curvature. More powerful benches will actually plot out the field curvature map for you.'

http://www.lensrentals.com/blog/2013/10/there-is-no-perfect-lens-test-either



Nov 18, 2013 at 02:15 AM
tororo
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p.3 #6 · Sony A7 and A7r Images and Discussion


cputeq wrote:
Man oh man those images look great to me! I love the very subtle and neutral rendering. I actually downloaded the original of the 2nd shot, added just very minor tweaks (minor sharpness and minor vignette and a spot removal) and added it as my desktop on my 15" retina Macbook -- it looks amazing (I even kept the watermark, as I love the choice of font).

Hope you don't mind! Very nice.

I typically have a rule that the only desktop wallpapers on my computers are images shot by me (hey, it's a pride thing!), but I made an exception to
...Show more

cputeq, thanks for your nice comments!
I will try to take more test images with a different lens and upload in the next few days, which shouldn't be difficult as I can take this camera with me anywhere I go. I actually thought I left the camera at home today until I had another look into my bag. It is so light (compared to full-frame DSLRs) and it still gives the best full-frame image quality available today. Impressive. Handling/usability is nice and well-thought as well, at least for my use.



Nov 18, 2013 at 02:20 AM
rscheffler
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p.3 #7 · Sony A7 and A7r Images and Discussion


Bokeh shots with the Nikkor 35/1.8 and 50/1.1 classics from the 50s/60s, plus Konica 21/35:

SLR Club (Korean)

Also multi-image galleries of the above on his blog here: http://www.blacksheep.kr/?p=321
Though they take a while to load for me...

And Konica 35/2, 'old' Voigt 50/1.5, MS Optical 50/1.1:
http://www.blacksheep.kr/?p=298

He also has the Konica 60/1.2 (I'm jealous!), but haven't seen anything from it yet...
http://www.blacksheep.kr/?p=274

Not sure if I read it right, but possibly with the Cosina 50/1.7... also at SLR Club

I really like the bokeh... busy, but interestingly painterly.



Nov 18, 2013 at 07:40 AM
mcbroomf
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p.3 #8 · Sony A7 and A7r Images and Discussion


lostinjapan wrote:
Here is a quick test shot from this evening. I used the A7r with the Canon 17mm TSE at full shift. I also bought the camera here in Japan, though I bought the adapter from BH, even with shipping and tax it was about 100 bucks cheaper.

Ryan

Hi Ryan,
Have you taken any shots with the 17mm TSE and examined corner detail when shifted? Any comparisons with a FF Canon?

Thanks

Mike



Nov 18, 2013 at 10:05 AM
uhoh7
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p.3 #9 · Sony A7 and A7r Images and Discussion


Edgars Kalnins wrote:
Are sony zeiss MTF charts based on real lens test now? If not, the article seems pointless, doesn't it!?


Did you read the article?

The point is simply: is the 35/2.8 too expensive?

No, it's a great lens.[says the author] Do you disagree?

I discounted the lens a bit at first, RF snob that I am. Now that I've seen a thousand samples, I think it's a fantastic lens. Well worth 800usd.

But I'm happy to be proved naive, if you have some evidence.....

Now the 35/2 asph is looking killer as is the lowly cv 35/1.4, and the hulky cv 35/1.2 and I've heard the latest 35 lux is good but haven't seen that yet.



Nov 18, 2013 at 11:08 AM
lostinjapan
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p.3 #10 · Sony A7 and A7r Images and Discussion


Yes,

The picture that I posted on page 2 of this thread was taken with the 17tse at full shift. The corners are sharp, though regardless I always stop down to f/11 when using that lens at full shift regardless of which body I am using it on. I also tested in daylight as well and the results looked perfect.

At least on the A7r it works very well and the vignetting is much better than I had hoped.

Below is one more image I took with the 17mm tse last night. Nothing special, still a work in progress, mainly I took it out to see how it performs.

Ryan





lostinjapan 2013




Nov 18, 2013 at 12:01 PM
 

Search in Used Dept. 



cputeq
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p.3 #11 · Sony A7 and A7r Images and Discussion


Man that Nikkon 50 1.1 bokeh is freaking awesome
http://www.slrclub.com/bbs/vx2.php?id=minolta_forum&page=1&divpage=149&select_arrange=headnum&desc=asc&no=796146&category=3



Nov 18, 2013 at 01:52 PM
michaelwatkins
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p.3 #12 · Sony A7 and A7r Images and Discussion


BONUS, Cat *and* alt glass sighting, Canon 50/1.4 nFD on A7r.


by neco_onsen, on Flickr



Nov 18, 2013 at 02:49 PM
michael49
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p.3 #13 · Sony A7 and A7r Images and Discussion


^ - the Holy Grail of image samles!!


Nov 18, 2013 at 03:47 PM
Gary Clennan
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p.3 #14 · Sony A7 and A7r Images and Discussion


michael49 wrote:
^ - the Holy Grail of image samles!!


I prefer ducks.



Nov 18, 2013 at 03:58 PM
tororo
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p.3 #15 · Sony A7 and A7r Images and Discussion


As quite a few people have tried Canon L lenses already on A7r (also all of my L lenses perform well on A7r as expected), today I went ahead with the more compact consumer grade lens, EF 85mm 1.8 on A7r.
Take handheld at f2, ISO 400. RAW conversion with Lightroom 5.3 RC. No sharpness added, no saturation/contrast added, only a tiny bit of white balance fix. It seems like EF 85/1.8 produces less bokeh fringing on A7r than on Canon cameras. Of course I have to perform side-by-side comparisons to verify this but so far, I'm very satisfied with its performance on A7r. I used Metabones Smart Adapter Mark III. AF works but it's very slow.
The original size is available at:
http://www.flickr.com/photos/ippei-janine/10944698735/







Nov 19, 2013 at 02:56 PM
Simon Kennedy
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p.3 #16 · Sony A7 and A7r Images and Discussion


lostinjapan wrote:
Yes,

The picture that I posted on page 2 of this thread was taken with the 17tse at full shift. The corners are sharp, though regardless I always stop down to f/11 when using that lens at full shift regardless of which body I am using it on. I also tested in daylight as well and the results looked perfect.

At least on the A7r it works very well and the vignetting is much better than I had hoped.

Below is one more image I took with the 17mm tse last night. Nothing special, still a work in progress, mainly I took it
...Show more

Hi Ryan,

Nice shot... I have been waiting for someone to get this combination. I am very interested in it myself - hope you don't mind if I ask some questions:

How is the live view (vs the Canon 5d mk 2)? The screen is OK in daylight?

Have you tried the 24 ts-e also?

Does the Metabones adapter feel like it would stand up to a lot of lens changes every day?

Thanks a lot in advance for your help...

Hope you will post some more soon.

Simon




Nov 19, 2013 at 07:32 PM
uhoh7
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p.3 #17 · Sony A7 and A7r Images and Discussion


I've got my old SLR stuff in the wings for backup, esp wide angle.
nFD 20
Kiron 28 and PC nikkor 28
some nice 35s too, but not looking like I'll need them.



Nov 19, 2013 at 08:58 PM
michaelwatkins
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p.3 #18 · Sony A7 and A7r Images and Discussion


Here's someone shooting C/Y glass on his A7:


Parkn' Shop by albertlaw, on Flickr (Planar 1,4/50)


BackHome by albertlaw, on Flickr (Distagon 2,8/28)

Lots of cropped images. Planar 1,4/50 and Distagon 2,8/28 within the Flickr pool, perhaps others. I've written him to see if he'd post some uncropped images from the D28.



Nov 20, 2013 at 08:13 AM
lostinjapan
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p.3 #19 · Sony A7 and A7r Images and Discussion


Simon Kennedy wrote:
Hi Ryan,

Nice shot... I have been waiting for someone to get this combination. I am very interested in it myself - hope you don't mind if I ask some questions:

How is the live view (vs the Canon 5d mk 2)? The screen is OK in daylight?

Have you tried the 24 ts-e also?

Does the Metabones adapter feel like it would stand up to a lot of lens changes every day?

Thanks a lot in advance for your help...

Hope you will post some more soon.

Simon



Hi Simon,

I think the live view is better the 5d2 but not as good as the 5d3. The 5d3 has much better live view, but the tiltable screen is quite nice. I tried the 24 ts-e as well, and like the 17mm it was sharp into the corners on my quick test. The raws look very nice, much more DR than either of the Canons, with nice clean shadows. (which is my one big gripe with the 5Ds) There is no question the Canons have better build quality to them.

The adapter is my only concern at this point. It seems very well constructed and the finish is very very good, but I do worry about the lens release button and how it will hold up in the long term. It works flawlessly with all my lenses. I only have ZE primes and the TSEs so I can't test the autofocus. But it works exactly the way I wanted it.

The weather here has been horrible for the few days, but starting tomorrow night it should start getting better. So I am planning on taking the camera out with all the lenses this weekend and spending some time getting to know it better.

Hope it helps.

Ryan



Nov 20, 2013 at 12:37 PM
tororo
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p.3 #20 · Sony A7 and A7r Images and Discussion


Quick snapshot from my neighborhood tonight, taken with A7r + Canon EF16-35mm F2.8L II @27mm, f11
The original size is available at:
http://www.flickr.com/photos/ippei-janine/10961536546/









Nov 20, 2013 at 02:20 PM
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