Best "dumb" adapters for A7R?

Started Feb 8, 2014 | Discussions thread
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Lattimer Junior Member • Posts: 36
Best "dumb" adapters for A7R?

I have the Metabones III for Canon EF. It works well with my Sigma 50 mm lens, although the autofocus is slow. Yesterday I received a SamYang and 14 mm ultra-wide, which I ordered in the Canon mount as well. I figure I can use it on my friends' Canon cameras should the opportunity ever arise. And apparently the Sony versions are the same lens with an adapter built-in anyway.

I was wondering if there are any dumb adapters for the Canon mount  that will be compatible with the full frame of the  A7R.  Since it is a fully manual lens,  I don't think I will need the fancy Metabones adapter, and was considering buying a cheap dumb adapter and leaving it attached to the lens for the sake of convenience as long as it will cover the entire full frame sensor.

I know there are multiple cheap Canon to E mount adapters,  but most list the various  NEX  cameras in their specifications without mention of the  A7/A7R.

 Lattimer's gear list:Lattimer's gear list
Sony Alpha a7R II Sigma 50mm F1.4 EX DG HSM Sony FE 35mm F2.8 Sony FE 55mm F1.8 Sony FE 24-70mm F4 OSS +2 more
Sony Alpha a7 Sony Alpha a7R
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