Focus
Manual
Mount
Nikon F
Format
35mm full frame
Groups
6
Elements
9
Weight
400g
Length mm
105
Spec Notes
9/6 with a ground ASPHERICAL element - the world's first ORTHOGRAPHIC-projection ('OP') fisheye and Nikon's first aspherical SLR lens. 180 degree CIRCULAR, fixed-focus. REQUIRES MIRROR LOCK-UP. Built-in filters. pre-AI only (1968).
Diameter mm
84
Max Aperture
f/5.6
Introduced
1968