Canon EF 50mm f1.8 STM developing 3/8” threads on top and

3/8” threads on top and bottom for leg and head connection

8 lens is in good working order

and the clamp itself is 12x20cm- so this is not something you want to attach to your travel tripod

This wideangle lens sports a fast f/2 maximum aperture while retaining Nikon's standard 52mm filter thread

5 N for Mamiya 645 is a good quality manual focus short telephoto lens for the Mamiya 645 system

Canon EF 50mm f1.8 STM developing 3/8” threads on top andThe Canon EF 50mm f1. 8 STM is a lightweight standard lens for Canon EOS film or digital cameras. Very good cosmetic condition, with minor wear, clean glass and good function. The STM focusing motor improves focusing performance for video.