Nikon 80mm f4 Nikkor for Nikonos Nikon Flash Has clean optics and good

Has clean optics and good mechanical function

Viewfinder mask is not included

plus a built-in flash

with a different optical design

excellent lens compatibility

Nikon 80mm f4 Nikkor for Nikonos Nikon Flash Has clean optics and goodThe Nikon 80mm f4 is designed for use in or out of the water; it's only one of two Nikonos lenses that can do this (the other is the standard 35mm f2. 5.) In excellent condition, with clean glass. Please note: this lens is for the Nikonos underwater camera system, not the much more common (and terrestrial) Nikon F mount. It will not work on an F mount camera. Do not buy this for a Nikon F mount camera because it does not fit and will not work.