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FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
Thread started 24 Feb 2014 (Monday) 08:30
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Sony A7 models with non-Sony lenses

 
StudioAbe
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Aug 21, 2014 21:11 as a reply to  @ post 17110431 |  #2326

Thanks for the input. Next time I'm in the vicinity of B&H, I'll see if I could exchange, although Metabones IV sells off like hotcakes and there's no guarantee there would be one in stock to try out and exchange. Or I could perhaps ask them to send exchange prior to returning.

In the meantime, this evening's test shots:

IMAGE: https://farm4.staticflickr.com/3903/14808235269_2c7bbc114b_b.jpg
A7R + 16-35 f/4L IS
5DIII brings better quality images out of this lens, IMO. Edges and corners are softer than with 5DIII. Center is crazy sharp. Decent contrast in an otherwise flat light.

IMAGE: https://farm4.staticflickr.com/3926/14991837241_4a86d8085f_b.jpg
A7R + 16-35 f/4L IS
Same observation as previous. It could be the "loose" adapter. There is, after all, one added variable in the form of an adapter. This was shot on a tabletop tripod.

IMAGE: https://farm6.staticflickr.com/5585/14808320038_b68e7eea81_c.jpg
A7R + TS-E 90mm f/2.8
Focus peaking is amazing. Takes the guesswork out of focusing when only screen available is the on-camera LCD. Question: which setting is more useful; Peaking low, medium or high? I think Eddie may have asked this question recently - is there a way to magnify a specific area during focusing, like the magnifying glass button on 5DIII during live view shooting that enables 5X and 10X views?

IMAGE: https://farm6.staticflickr.com/5592/14994558562_7cbeafe0dd_c.jpg
A7R + TS-E 90mm f/2.8
In some of the test shots by others, I noticed A7R's ability to capture "materiality," perhaps owing to its sensor resolution? I am happy with how it rendered the glass with condensation. I think the true test for the camera in my case would be how it fares with TS-E 24II and 17. I'll see if I can do something with those combinations tomorrow...


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vipergts831
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Aug 21, 2014 21:22 |  #2327

Eugene I use medium for focus peeking with the color set to red. In terms of zoom yes you can zoom in during focus.

I have set the Af/mf button as focus magnifier. You can do this under Menu-> Settings (cog symbol) ->tab 6 -> custom key settings. Then all you do is press that button to zoom in twice. You can also move the focus location by using the the scroll wheels.

I have also set the magnification time to unlimited. Menu-> Settings (cog symbol) -> tab 1 -> focus magnif. Time -> no limit.


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Aug 21, 2014 23:07 |  #2328

Congrats Eugene!

a7R + Zeiss 55mm

IMAGE: http://alfredomora.smugmug.com/photos/i-2mrrhBt/0/XL/i-2mrrhBt-XL.jpg



  
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Aug 22, 2014 01:18 as a reply to  @ digital_AM's post |  #2329

Eugene, Congrats! I'm interested in your findings as I can't decide between another 24 tse or a 16-35 f/4. Will hopefully be purchasing next week


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Aug 22, 2014 06:01 |  #2330

who needs a zoom lens? lol

IMAGE: https://farm4.staticflickr.com/3882/14994880331_53e55f8277_b.jpg
IMAGE LINK: https://flic.kr/p/oR3F​vv  (external link) spider-1 (external link) by vinzmunoz (external link), on Flickr

cropped version.
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR
spider-2 (external link) by vinzmunoz (external link), on Flickr

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Aug 22, 2014 06:02 |  #2331

that's what a manual focus is capable of... it's hard to AF a subject thats small when you're far away.


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Aug 22, 2014 08:11 |  #2332

navydoc wrote in post #17110385 (external link)
This is as close as I've been able to come to shooting the St. George Temple in sunny, blue sky conditions. Maybe a third time will be the charm although I have no plans to visit again soon. We ran into mostly cloudy skies with occasional thunder storms just as we did on the last visit a couple of weeks ago.

a7r + FE 24-70mm F4 ZA OSS

Nice Gene!

David Arbogast wrote in post #17110431 (external link)
^Love the temple shot - the white looks so crisp.

a7R + TS-E 24mm f/3.5L II:
QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/oyxJ​35  (external link)
Reflecting at Lake Buteo (external link) by David Arbogast (external link), on Flickr

Good reflection David. Seems like a mosquito's dream :lol:

vinmunoz wrote in post #17110947 (external link)
who needs a zoom lens? lol

cropped version.

bw!


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Aug 22, 2014 08:36 |  #2333

vinmunoz wrote in post #17110947 (external link)
who needs a zoom lens?

Ha-ha.. excellent

Love the resolution on this camera

I only found out you can actually force crop mode regardless of the lens , I realised you could put crop E lenses on and it would auto change , but didn't know it could be forced on with any lens - Yeah it reduced the resolution but it was great for a zoo visit effectively magnifying my 70-200.


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vipergts831
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Aug 22, 2014 08:41 |  #2334

And if you need to get a bit better high iso performance out of the A7r just down sample to 12 MP in an emergency situation. :)


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Aug 22, 2014 08:46 |  #2335

and you get the ISO performance of the A7S.....


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Aug 22, 2014 09:05 |  #2336

vipergts831 wrote in post #17110487 (external link)
Eugene I use medium for focus peeking with the color set to red. In terms of zoom yes you can zoom in during focus.

I have set the Af/mf button as focus magnifier. You can do this under Menu-> Settings (cog symbol) ->tab 6 -> custom key settings. Then all you do is press that button to zoom in twice. You can also move the focus location by using the the scroll wheels.

I have also set the magnification time to unlimited. Menu-> Settings (cog symbol) -> tab 1 -> focus magnif. Time -> no limit.

Great hack, thank you!
I went ahead and ordered 3 more Metabones adapter with hopes that one would fit right. By the way, what's shipped with the adapter? My order came inside a plastic carrying case in a flimsy Metabones cardboard box (of course, B&H packaged it inside bubble wrap and their sturdy box); inside the carrying case were two hex wrenches and two small rubber caps, adapter with caps and a tripod mount. No printed instructions. Sounds about right or am I missing something? It had a feel of 'returned item' when I first saw the box.



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Aug 22, 2014 09:39 |  #2337

vinmunoz wrote in post #17111164 (external link)
and you get the ISO performance of the A7S.....

not really. A7s looks to hold ISO well past 12800, where the A7r just crumbles at that iso and beyond.


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vipergts831
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Aug 22, 2014 09:40 |  #2338

Mu Eugene wrote in post #17111195 (external link)
Great hack, thank you!
I went ahead and ordered 3 more Metabones adapter with hopes that one would fit right. By the way, what's shipped with the adapter? My order came inside a plastic carrying case in a flimsy Metabones cardboard box (of course, B&H packaged it inside bubble wrap and their sturdy box); inside the carrying case were two hex wrenches and two small rubber caps, adapter with caps and a tripod mount. No printed instructions. Sounds about right or am I missing something? It had a feel of 'returned item' when I first saw the box.

Nope sounds about right. Version IV of the adapter looks like this:

IMAGE: https://farm6.staticflickr.com/5556/14832544726_5bf2ba9598_c.jpg
IMAGE LINK: https://flic.kr/p/oAGE​ML  (external link) Metabones IV Professional Adapter Ring (external link) by Prodigy83 (external link), on Flickr

Here is a good instruction manual for it:

http://www.metabones.c​om …/of/green-power-save-mode (external link)

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Aug 22, 2014 10:40 |  #2339

Charlie wrote in post #17111251 (external link)
not really. A7s looks to hold ISO well past 12800, where the A7r just crumbles at that iso and beyond.

when downsampling to 12mp, it does look similar.

this is even with A6000 only at 25600 ISO with a little ETTR.
sorry for posting it here in this thread....

IMAGE: https://farm3.staticflickr.com/2908/14545437651_d170612a49_b.jpg
IMAGE LINK: https://flic.kr/p/oaka​RM  (external link) A6000ISO25600-1 (external link) by vinzmunoz (external link), on Flickr

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vipergts831
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Aug 22, 2014 10:46 |  #2340

Charlie wrote in post #17111251 (external link)
not really. A7s looks to hold ISO well past 12800, where the A7r just crumbles at that iso and beyond.

He is saying it off my comment. When you downsample an A7r file to 12 MP you get pretty good ISO results. Almost comparable. I had both cameras and can attest to it. Here is DPReviews comparison of downsampling A7r and 5dmkIII to the 12 mp of the A7s.

http://www.dpreview.co​m …s-a7r-vs-canon-eos-5d-iii (external link)

This lines up exactly with what i saw when i had both cameras:

Moderately high ISO performance:up to a 1 EV advantage in shadows

How does the A7S compare to the A7R and 5D Mark III at more reasonable - yet still high - ISOs? That 2 EV advantage over the Canon 5D Mark III drops to roughly 2/3 or 1 EV, at best, at ISO 51,200. Here the darker tones of the A7S look on par with the 5D Mark III's ISO 25,600 when both images are viewed at a normalized 12 MP. The A7R fares a tiny bit better.

The A7S' advantage is - unsurprisingly - nullified for shot noise limited brighter tones, where ISO 51,200 yields similar normalized noise levels across cameras. This leads us to our next point...

This is why i wont hesitate to shoot at high isos in a pinch. I just need to remember i am effectively going to shoot a 12mp image. I can live with that in those circumstances :)


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