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FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
Thread started 03 Sep 2016 (Saturday) 20:06
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Lens adapters and UWA lenses

 
zarray
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Sep 03, 2016 20:06 |  #1

Hi guys,

am a Canon user with a 5d2 and decent collection of Canon EF lenses. Namely the 17-40, 24-105, 70-200 F4 IS, sigma 50mm non-art, canon 85mm 1.8.

I am one of those in search of better IQ, better shadow recovery (I shoot mostly landscapes/cityscapes) and a lighter overall setup if possible.
I recently acquired the Sony A7ii body to try it out to see if I like it but have not bought any adapter to use my Canon lenses on the A7ii yet.
I do hope I will come to enjoy shooting with the A7ii but if not I intend to sell off the 5D2 and the A7ii and get the 6D instead(5d4 is wayyy over my budget!).

For what I shoot, the 17-40 is currently my most used lens and I did hear about some image degradation at the corners with adapters+UWA lenses in general. And hence I was wondering if the degradation is significant? What causes the degradation since there's no glass in the adapter?

I am still undecided between the Metabones T-smart Mark 4 adapter or the Sigma MC-11. So if anyone could advise, I would like to hear it. :-)


5D Mark II | 5Dc |17-40 | 24-105 | 70-200 F2.8 IS | Sigma 50mm 1.4 | 580EX

  
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BrandonSi
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Sep 03, 2016 22:23 |  #2

zarray wrote in post #18116074 (external link)
Hi guys,

am a Canon user with a 5d2 and decent collection of Canon EF lenses. Namely the 17-40, 24-105, 70-200 F4 IS, sigma 50mm non-art, canon 85mm 1.8.

I am one of those in search of better IQ, better shadow recovery (I shoot mostly landscapes/cityscapes) and a lighter overall setup if possible.
I recently acquired the Sony A7ii body to try it out to see if I like it but have not bought any adapter to use my Canon lenses on the A7ii yet.
I do hope I will come to enjoy shooting with the A7ii but if not I intend to sell off the 5D2 and the A7ii and get the 6D instead(5d4 is wayyy over my budget!).

For what I shoot, the 17-40 is currently my most used lens and I did hear about some image degradation at the corners with adapters+UWA lenses in general. And hence I was wondering if the degradation is significant? What causes the degradation since there's no glass in the adapter?

I am still undecided between the Metabones T-smart Mark 4 adapter or the Sigma MC-11. So if anyone could advise, I would like to hear it. :-)

Most of the UWA issues you would read about when referring to adapted lenses are with older lenses, or rangefinder lenses on the Sony sensor. I used the 17-40 on the A7Rii extensively in Iceland and it worked great. FWIW, I used the Metabones III.

Some examples from that combo to give you an idea.

@17mm

IMAGE: https://c5.staticflickr.com/6/5791/20223048884_7f1d04979d_b.jpg
IMAGE LINK: https://flic.kr/p/wP3p​SC  (external link) Dettifoss (external link) by Brandon Harris (external link), on Flickr


@17mm

IMAGE: https://c2.staticflickr.com/1/751/20414324633_d3b094e228_b.jpg
IMAGE LINK: https://flic.kr/p/x6WK​un  (external link) DSC04723 (external link) by Brandon Harris (external link), on Flickr

@27mm

IMAGE: https://c2.staticflickr.com/6/5658/20414333233_3849e16156_b.jpg
IMAGE LINK: https://flic.kr/p/x6WN​3D  (external link) DSC04725 (external link) by Brandon Harris (external link), on Flickr


@31 mm

IMAGE: https://c2.staticflickr.com/6/5723/21330471009_5e88615260_b.jpg
IMAGE LINK: https://flic.kr/p/yuUe​Tx  (external link) DSC04972 1 (external link) by Brandon Harris (external link), on Flickr

IMAGE: https://c3.staticflickr.com/1/651/21492690938_cff4c90b98_b.jpg
IMAGE LINK: https://flic.kr/p/yKeE​dS  (external link) DSC04929 (external link) by Brandon Harris (external link), on Flickr


@40mm

IMAGE: https://c1.staticflickr.com/6/5689/21055661360_ce62f64005_b.jpg
IMAGE LINK: https://flic.kr/p/y5BL​y9  (external link) DSC04819 (external link) by Brandon Harris (external link), on Flickr

[ www (external link)ยท flickr (external link)]

  
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JacobL
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Sep 11, 2016 12:21 as a reply to  @ BrandonSi's post |  #3

Thanks. I've ordered the A7RII and also using canon lenses..

I wonder how it will work with my 12mm fisheye




  
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zarray
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Sep 11, 2016 22:58 |  #4

Update: I've got my hands on the Metabones T mk4 adapter and everything is working pretty well so far, except for the very low light conditions with F/4 glass.
The autofocus on the A7ii is very nice(and i can imagine it will only be better on the A7Rii) and accurate with prime lenses wide open.

Still undecided if I will keep the A7ii + Metabones instead of the 6D, but looks like I'll be keeping this setup for the next 1 year or so. The tilting screen has been very helpful too!


5D Mark II | 5Dc |17-40 | 24-105 | 70-200 F2.8 IS | Sigma 50mm 1.4 | 580EX

  
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ZoneV
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Sep 28, 2016 01:56 |  #5

zarray wrote in post #18116074 (external link)
... And hence I was wondering if the degradation is significant? What causes the degradation since there's no glass in the adapter? ...

The adapter mounts have to be parallel to a high level.
This problem is the same with other focal lengths, but on wideangle lenses the result is more easy to see as problem.


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sesser
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Nov 07, 2016 16:37 |  #6

BrandonSi wrote in post #18116190 (external link)
Most of the UWA issues you would read about when referring to adapted lenses are with older lenses, or rangefinder lenses on the Sony sensor.

This is true. I find it also happens with even newer UWAs like the Rokinon 14mm f/2.8 and the Voigtlander 15mm f/4.5 II. Quite a bit of color shifts with both of these lenses.

Case in point... granted, I boosted shadows and clarity a bit to make it more pronounced, but still an issue.


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Tareq
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Nov 22, 2016 18:14 |  #7

How about the adapter with Canon TS lens [Say 17mm] on Sony?
I didn't test my Tamron 15-30 yet, but i just received my filter holder for this lens recently so i would like to give it a try soon, but i always care about Canon TS 17 the most, and i use Metabones III not the new one, either i should sell it first and buy MB4 or going with Sigma which is not that much cheaper either.


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crashwins
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Dec 02, 2016 08:52 |  #8

Ironically, the MB4 seems to be better with the Sigma lenses, but this way before the update...so that might have changed.




  
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TheShutterMonkey
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Post edited over 4 years ago by TheShutterMonkey.
     
Dec 02, 2016 14:11 |  #9

Tareq wrote in post #18191977 (external link)
How about the adapter with Canon TS lens [Say 17mm] on Sony?
I didn't test my Tamron 15-30 yet, but i just received my filter holder for this lens recently so i would like to give it a try soon, but i always care about Canon TS 17 the most, and i use Metabones III not the new one, either i should sell it first and buy MB4 or going with Sigma which is not that much cheaper either.

I use the 17mm TS-E on my a7RII, and I can testify that the bigger opening AND flocking interior of both the Metabones IV "T" AND Sigma's MC-11 helps a lot. The bigger, wider opening helps with corner sharpness (especially when shifting) and the flocking helps with flaring. I used to use the $99 Fotodiox




  
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Tareq
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Dec 02, 2016 20:34 |  #10

TheShutterMonkey wrote in post #18201287 (external link)
I use the 17mm TS-E on my a7RII, and I can testify that the bigger opening AND flocking interior of both the Metabones IV "T" AND Sigma's MC-11 helps a lot. The bigger, wider opening helps with corner sharpness (especially when shifting) and the flocking helps with flaring. I used to use the $99 Fotodiox

Cool, so you confirm that the Sigma MC-11 adapter working fine same as MB4"T" with Canon TS lenses?

I have 2 options, either sell MB3 to get MB4 or buying the Sigma one instead, and main reason is for TS lenses to get what you mentioned.


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JacobL
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Dec 10, 2016 02:01 |  #11

Tareq wrote in post #18191977 (external link)
How about the adapter with Canon TS lens [Say 17mm] on Sony?
I didn't test my Tamron 15-30 yet, but i just received my filter holder for this lens recently so i would like to give it a try soon, but i always care about Canon TS 17 the most, and i use Metabones III not the new one, either i should sell it first and buy MB4 or going with Sigma which is not that much cheaper either.

I use a 24mm TS-E lens with the A7R2 and metabones 4 (new). excellent performance and no dark corners or sharpness issues.




  
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Tareq
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Dec 10, 2016 04:45 |  #12

JacobL wrote in post #18208586 (external link)
I use a 24mm TS-E lens with the A7R2 and metabones 4 (new). excellent performance and no dark corners or sharpness issues.

Good to hear that


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Lens adapters and UWA lenses
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