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I have been following the launch of this potentially very interesting product https://www.facebook.com/techartadapter/ and even had some (albeit frustrating) contacts to support them in market introduction in Germany. The concept is almost as ingenious as the AF functionality in the CONTAX AX - I just love it... As I am planning a trip to New York, I checked, if it is available at http://www.adorama.com/ or at http://www.bhphotovideo.com/ as originally announced - both no longer offer the product. This and the fact that I have no clue, where I could test the product in Germany any other way than just ordering it direct from China without any assurance what happens if I don't like the performance of the adapter doesn't give me a good feeling. Any feedback from users who have already obtained the adapter? Ideally I would look for feedback from someone who has used it with CY Zeiss lenses

I have now tried two copies of Metabones' Canon FD-Sony E Adapter (Part# MB_FD-E-BM1) on my Sony cameras. This adapter fits comfortably on the Sony a6000 body, however on the A7Rii it does not properly fit and to my horror it appeared to scratch the front surface of the lens mount. I have several other Metabones adapters for Sony E (Nikon F, C/Y) that do not have this issue, and generally I find the quality of the Metabones adapters to be better than competing brands - certainly better than the lower end brands, but also better than the Novaflex adapters that cost ~2x as much. This issue brings up two questions: I wonder if the tolerance on the old Sony E mount is looser than on the updated mk ii lineup (A7II, A7RII, A7SII, a6300). I know that Sony improved the rigidity of the mount in the update, I wonder if anyone else has noticed a commensurate tightening of tolerances (meaning other old adapters may also now fall out of spec). Has anyone else had issues with the Metabones Canon FD adapter on the mk ii full frame E-mount bodies? As many FD lenses are of low quality I would imagine that these adapters get mostly purchased for the less expensive bodies, but as there are some excellent FD mount lenses available I am hoping that somebody else has tried one of these on an A7Rii. The issue I experienced was unacceptable and I would caution other users to try Metabones adapters in-store before trying to use them on their own kit. Regards, FDP

Is there any consensus out there as to what's the best Canon to e mount lens adapter that also provides aperture control? I'm OK with manual focus so poor autofocus isn't necessarily a deal breaker. My Fotasy adapter works great with my Olympus lenses that have an manual aperture ring but the lack of an electronic handshake keeps me stuck on maximum aperture for my Canon lenses. Thanks