Meike Cinema Lens 50mm T2.2 for Micro Four Thirds  type_Continuous Lighting primarily on the screen (there's

primarily on the screen (there's no effect on function)

with clean glass and a nice round aperture

and the F4's nameplate says "1980 Nikon F3"

Once installed

and weird proprietary (OF COURSE) multi-function cable for USB connection

Meike Cinema Lens 50mm T2.2 for Micro Four Thirds &nbsptype_Continuous Lighting primarily on the screen (there'sThe Meike Cinema Lens 50mm T2. 2 is a compact, manual focus lens for Micro Four Thirds. Designed for video use, with geared focus and aperture controls and a 77mm filter thread shared with other Meike lenses. Nevertheless, there's nothing stopping you from using this for stills, if you want. In excellent condition, with clean glass and only minor cosmetic wear.