Canon RF 16mm F2.8 STM Used. The lens functions normally and is in good working order, with no issues for regular use. However, there is a flaw: a chip on the outer filter thread in one spot (circled in red in the photo). I used ND filters on the inner thread, but not the outer one, so I'm unsure if it will affect filter usage. Please judge from the photos. Otherwise, there are no noticeable scratches. Includes the box and all accessories. Price is not negotiable.