jhinkey Offline Upload & Sell: On
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Well I did just that for my 135/2 APO ZF.2 and my A7R.
Started out with the Fotasy - it was fine, but I did not like hanging my Zeiss off of those 4 tiny screws that were not tightened down very well. Also wanted a tripod mount. It was however excellent for parallelism of the front and rear mounting flanges. Did not like the slit aluminum mount springs.
So I just got the Metabones with tripod foot. It's heavier, beefier, and it had 5 or 6 much larger screws that hold the front flange on. No problem with this baby every coming apart.
It was however less parallel than my cheap fotasy - I measured the distance from front to rear flange at the top/bottom/left/right and found a solid 0.0015 inch difference from top to bottom and a less then 0.0005 from left right. We'll see if I can see the difference with my 135/2. I may take the flange off and give it a cleaning in case there is something underneath it preventing it from being parallel.
As a reference - when I use my 135/2 Zeiss on my D800 I can clearly see that my mounting flange is not parallel to my sensor. When I used the fotasy on my A7R it appeared that the mount + adapter was very parallel to the sensor as I could not see any appreciable difference in sharpness across the frame wide open.
John
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