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.
30/01/2020
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.
19/10/2018
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.
30/08/2018
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.
02/06/2016