I haven't had a chance to properly use then yet. But they look like they'll do the job and are well made.
18/02/2018
Ordered Thursday, delivered Friday, used Saturday on my new Fuji lens for use with close up filters. Well made, fitted perfectly, great purchase. This was my 2nd purchase from K & F. I was just as satisfied with my first.
10/02/2018
Arrived promptly. Was as described. Metal contruction. No problems with the machining. Good value, which was helpful because I only needed 4 rings from the middle of the range, adapting 43mm-62mm. The set was still a good price even after discarding 7 of the 11 rings.
02/04/2017
They all seem to be well made with no machining issues.
23/04/2016