I can only speak for the version that I purchased which is the Leica M mount to the Sony E mount. I have about 10 different lens adapter types and this one has better fit and finish than most. It does cost just a bit more but the quality is better.
Been taking pictures today with a Leica M rangefinder coupled lens on a Sony A7 camera with great results.
The E mount side went on smoothly with minimal play, no light leaks and not too loose nor to tight. Not as good as a factory lens mount, but I have no concerns on the fit. About average or better compared to other adapters.
The Leica M mount side fits great, as if it were a factory mount.
It's better than I expected and I would purchase this version again.
Been taking pictures today with a Leica M rangefinder coupled lens on a Sony A7 camera with great results.
The E mount side went on smoothly with minimal play, no light leaks and not too loose nor to tight. Not as good as a factory lens mount, but I have no concerns on the fit. About average or better compared to other adapters.
The Leica M mount side fits great, as if it were a factory mount.
It's better than I expected and I would purchase this version again.
02/11/2021
Product as advertised. Good materials and workmanship. Precision fit to both the K-mount lens, and to the sony E-mount camera.
31/10/2021
Use on my sony a6000 and works perfect. Good solid product. Nice price too.
14/03/2020
I used this to adapt an older Nikon lens to my Sony A7iii cameraFit and finish of the unit is good and it does all that it was expected to do - there is no connection between the lens and the camera as it is full manual focus and f stop adjustmentif you accept this, then this adapter works just fineI can now use my larger old telephoto lens manually on my Sony camera
22/11/2019
I knew this didn't autofocus - although it does meter correctly - when I bought it so that's not an issue. It's turned out to be an extremely cheap and cheerful way to try out my Nikon lens collection on an e-mount camera. Works a treat!
06/09/2019
As with all K&F Concept Lens Mount Adaptors they are well made, provide a good fit and work as described. I have nearly a full set of the various mounts they produce and I have never had any issues with them at all. They have given new life to my vintage lenses, which in turn has given new life to my photography.
31/08/2019
No auto focus but wasn't in the specs and im more than happy with product as I don't often use auto focus
03/08/2019