Slight imperfections, but for the money perfectly fine

Served its purpose, the only abnormality is a slight variation of the angle of 2-5 degrees, depending on the adapter (yes, that seems to be a systematic problem, I ordered several different adapter, and all had the same variation :)

This is with an objective not care, maybe it moves the highlight of the aperture ring slightly to the left or right, but with the use of bellows or similar equipment, where the angle is really relevant to this error, the somewhat disturbing effect, you must then by tilt of the tripod or as reverse.

I would however definitely buy again, just for the money you can equip in principle his entire waste glass so, to have it always ready for immediate use.