The Sun-Cosmicar 22.5-90mm f1.5 lens is a relatively large and heavy C-mount lens, but hey, it's a 4x zoom with a constant f1.5 aperture. That's pretty good! Covers Micro Four Thirds towards the telephoto end- and it's real close to filling the frame in square format. Covers Super 16 throughout. In excellent condition, with minor cosmetic wear, clean glass, good function.