Focus
Manual
Mount
Nikon F
Format
35mm full frame
Groups
8
Elements
10
Length mm
139
Spec Notes
10/8 retrofocus, 180 degree CIRCULAR. Allows normal reflex viewing - NO mirror lock-up. Built-in revolving 5-filter turret. Auto/AI/AI-S fold. Weight ~1.0-1.1kg (source conflict -> absent).
Diameter mm
123
Max Aperture
f/2.8
Min Aperture
f/22
Min Focus Distance
30cm
Introduced
1970