Super-sharp lens, selling cheap because the shutter needs serviced. Slow speeds don't work, and I am not sure the high speeds are correct. The shutter-speed setting ring is hard to turn. Haven't used in several years. It turned smooth back then and all the speeds worked, so it gummed up from sitting. The glass is in good shape but has some dust inside. $50 plus $10 shipping. Includes retaining ring.
