> the mount is strangely corroded but seems to work OK I wonder what sort of corrosion it has, Raimo. I once had an M* 300/4 that was in overall great shape, except that it had been corroded on the surface of the K-mount flange (I assumed it had been left on a body with some water between the body flange and the lens flange). In my case, the corrosion had eaten away some of the chrome surface of the flange in some areas, but did not affect its functionality (and, besides, you couldn't see the corrosion when the lens was mounted on a body - <g>).
Fred
