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.
21/12/2020
No auto focus but wasn't in the specs and im more than happy with product as I don't often use auto focus
23/11/2020
I was surprised with the build quality of this adapter, it being very good!However, I use a Fujinon 55mm f/1.8 manual lens with this on a Sony A6500, and I cannot focus to infinity.This is because the adapter needs to hold the lens ever-so-slightly closer to the sensor.I know it is not a problem with the lens as it focuses to infinity just fine on my actual M42 mount film camera.Any focus closer than infinity works just fine, it's just a little frustrating that I can't use this for landscape / long shots.
02/07/2020