Extremely pleased. Fit my Canon 50mm 1.8 perfectly. Also, precise alignment with my Pentax Q. Finish and operational smoothness is first rate. Everything locks into place and movement is effortless. My only observation is that the locking mechanism LOCK <-------> OPEN could be a little tighter to be sure that the adapter does not disengage from your lens. This is a concern especially when you get to using bigger and longer lenses with this adapter. If this change can be done, I cannot see any other manufacturer meeting this level of quality. A great and fantastic buy.
11.05.2016