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  Previous versions of gdanmitchell's message #13145411 « A7RII and Canon lenses AF compatibility »

  

gdanmitchell
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Re: A7RII and Canon lenses AF compatibility


bhollis wrote:
Seeing lots of differing reports. Makes me wonder whether copy variation might be at play here. Copy variation could be with the particular camera, adapter and/or lens used in a given test.

Given the differing results, and all the caveats and qualifications we\'re seeing for even the lenses that supposedly work well, I\'m coming to the conclusion that the only way to really know how well a particular lens will work for you is to try it on your A7RII with your adapter and your Canon lens.


Besides \"copy variation,\" there are potentially other factors, too.

1. Operator technique — subject and lighting variations, etc.

2. Confirmation bias — in both directions.

Dan



Aug 11, 2015 at 10:27 PM
gdanmitchell
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Re: A7RII and Canon lenses AF compatibility


bhollis wrote:
Seeing lots of differing reports. Makes me wonder whether copy variation might be at play here. Copy variation could be with the particular camera, adapter and/or lens used in a given test.

Given the differing results, and all the caveats and qualifications we\'re seeing for even the lenses that supposedly work well, I\'m coming to the conclusion that the only way to really know how well a particular lens will work for you is to try it on your A7RII with your adapter and your Canon lens.


Besides \"copy variation,\" there are potentially other factors, too.

1. Operator technique — subject and lighting variations, etc.

2. confirmation bias — in both directions.

Dan



Aug 11, 2015 at 10:27 PM
gdanmitchell
Offline
Upload & Sell: Off
Re: A7RII and Canon lenses AF compatibility


bhollis wrote:
Seeing lots of differing reports. Makes me wonder whether copy variation might be at play here. Copy variation could be with the particular camera, adapter and/or lens used in a given test.

Given the differing results, and all the caveats and qualifications we\'re seeing for even the lenses that supposedly work well, I\'m coming to the conclusion that the only way to really know how well a particular lens will work for you is to try it on your A7RII with your adapter and your Canon lens.


Besides \"copy variation,\" there are potentially other factors, too.

1. Operator technique — subject and lighting variations, etc.

2. Confirmation bias — in both directions.

Dan



Aug 11, 2015 at 11:05 AM





  Previous versions of gdanmitchell's message #13145411 « A7RII and Canon lenses AF compatibility »