For first time a praise for the lightning fast delivery. The adapter fits well, because there is nichtŽs to complain. Also, the chip on the adapter is firmly seated. At this price, my old glasses come with M42 thread from the analog time to use. Yesterday I made a portrait shoot with a Takumo 1,7x50 mm from the seventies years. From the 50mm focal length is a telephoto of 80mm with the Crop. All top notch !! No color distortion, no vignetting. With a large aperture opening from 2- 2.8 staging a Super Bokeh. Certainly Manual focussing is not jedermannŽs thing, but the chip in the adapter communicates with the camera very precise, what previously took a very fiddly, time-consuming and not always accurate distance setting with itself. My decision to buy, I have no regrets.
