Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
7
Elements
8
Weight
261g
Filter Thread
52mm
Spec Notes
52mm filter. Short K-only run 1976-1977, superseded by the M 28/3.5.
Max Aperture
f/3.5
Min Focus Distance
30cm
Aperture Blades
5
Introduced
1976