SMC Pentax-F 50mm f1.7 eye cup Of note: the small rubber

Of note: the small rubber plug over the motor drive connector is not present

If you want in on the festivities

and a rotating zoom ring instead of the first version's push-pull system

Compatible with Pentax TTL film cameras (including the 645n) and digital cameras not using the later P-TTL protocol

this lens actually does provide magnification up to 1:2

SMC Pentax-F 50mm f1.7 eye cup Of note: the small rubberThe SMC Pentax F 50mm f1. 7 is a compact standard lens for Pentax K mount cameras, with autofocus linkage for cameras with focus motors in the body. Naturally, this lens can also be focused manually on older K mount cameras. In excellent condition, with minor cosmetic wear, smooth focusing, good diaphragm action, and clean glass.