K&F Concept Updated NIK to EOS Adapter, Manual Lens Mount Adapter Compatible with Nikon Nikkor F/AI Mount Lens and Compatible with Canon EOS EF EF-S Mount Camera Body

Tremendous product. I was using my usual, cheaper, adapter for a newly purchased Takumar 50mm/1.4 and it tightened the lens up to the point where it was impossible to reach infinity and still move the f-stop. This adapter resolved the issue immediately, it felt like a much better fit and a much more professional product. The lens now moves freely and works perfectly - think I'll probably upgrade all my M42 adapted lens to this stirling effort.

This adaptor was very east to fit to my old manual lenses and works very well. I can now use my old 400 lens on my digital camera. Initial expressions is that it takes very good photographs.

A well made product. Easy to attach and works well. Very useful for using old style M42 screw thread lenses on modern cameras. Obviously wont work in most programme modes, but I found it is ideal in Manual and stopped down Aperture mode.

Can't fault the quality but didn't stop my Helios lens from hitting the Canon 5D mirror when set to infinity. Think that's a fault of the camera rather than the mount

So I've bought a vivitar, a helios and a pentax and each of them had fit and felt secure in this adapter.The build is simple, strong and secure! Very happy customer.

Fits perfectly

Excellent. Can reach infinity focus which I haven't been able to do with some other adapters.

works fine and looks sturdy.