It is a nice item. the ring to the body is snap on and secure, but the lens ring is not as tight as the body ring is. I tried a few M lenses and they all moved a tiny bit. I can live with it if there is no alternative, but fotodiox rings are excellent on both sides.
16/12/2020
The pin that lockss the Leica M lens in place is a bit small, so the lens will slip back and forth when I'm focusing it. I have had good luck with K&F adapters until now. The adapter works OK, but the fit is disappointing.
26/02/2020
I had an adapter from another company but it caused vignetting with my 7 Artisans lens but the K&F adapter helped clean up the corners a lot. I haven't had a chance to review its long term durability but from new both lens fit and body fit are firm, machining is of good quality so for the price its a no-brainer.
11/06/2019
Fits perfectly in my A7iii, my Voightlander (28mm) and Zeiss (50mm) lenses work totally fine. Solid feeling. Focuses fine to infinite in my opinion. In body image stabilization keeps working with no trouble.
09/04/2019
Nice to be able to use my M lenses on my Sony a7 now. Very happy with the product and fast delivery.
10/10/2017