Leica APO-Summicron-M 50mm f/2.0 ASPH Lens For M-Series Cameras

50mm Focal Length/ 8 Elements In 5 Groups/ f/2.0 - f/16 Aperture/ 2.3 ’ - Infinity Focus Range/ 11 Iris Blades/ 47, 40, 27 Degrees Angle Of View/ Leica M Quick-Change Bayonet Mount/ Black Finish/ETA Back Ordered 9 to 12 months (7/22/14)