This Leica 40mm Summicron-C f2 black M bayonet mount lens is in excellent condition cosmetically, mechanically and optically. Serial #2707123. Made in 1973. Desirable compact 40mm Summicron-C lens. Originally made for your Leica CL compact rangefinder but will work on any of your Leica M rangefinder bodies by bringing up the 50mm frame lines. Very popular for use with your Leica M8 and M8.2 camera bodies as a standard focal length lens. In excellent condition overall. A great lens to use.