Canon EF 50mm f1.8 STM developing This wideangle lens sports a

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

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

It's "full frame

with minor surface wear from normal use and handling

The Nikon D4s is a big professional DSLR with a 16mp full-frame sensor

Canon EF 50mm f1.8 STM developing This wideangle lens sports aThe 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.