Nikon 55mm f3.5 Micro-Nikkor-P
This Nikon 55mm f3.5 Micro-Nikkor-P was originally a pre-AI lens, but it's had an official Nikon conversion to AI with a new aperture ring. That means you can mount and use this lens on nearly any F mount camera- and that includes most modern ones. In excellent cosmetic condition, this lens also has clean optics and good mechanical function. One of the cleanest Micro-Nikkors we've seen.