A classic manual focus Nikon circular fisheye lens manufactured in Japan for the Nikon F mount.

Features:
* 8mm focal length
* f/2.8 maximum aperture
* Circular fisheye projection
* Manual focus
* Built-in rotating filter system
* Nikon F mount

Optics are exceptionally clean. I can see no fungus, haze, separation or scratches. Focus operation is smooth and the filter wheel functions correctly. Cosmetic wear is limited to minor marks consistent with age.