Does what its supose to do. I mounted a nikon 20mm 2.8 and an 85mm f2 to my metabones speedbooster (canon mount). Feels solid. A little tight to get the adapter on the lens but realy no problem.
15.12.2019
02.11.2019
Fits really well, creates a nice solid mount with little to no loose connection ensuring focus pulling is never shakey
23.10.2019
So far so good. Although I have slight doubts over its critical focus abilities with super wide angle lenses which is the tell tale sign of not being micro-millimeter perfect.
10.10.2018
très bon les lentilles AI et AI-S fonctionne très bien cette adaptateur est très bien fabriquer solide, good job very happy this product it very good solid and smooth I am very happy
12.10.2017
Works well. The adapter fits firmly on the lens, so that it will be solidly on the camera. All metal, no plastic.
04.09.2017