Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
4
Elements
5
Weight
355g
Filter Thread
52mm
Spec Notes
52mm filter. DISTINCT from the M 120/2.8 (5/5, 49mm, lighter). Produced 1975-1977.
Max Aperture
f/2.8
Min Focus Distance
120cm
Aperture Blades
6
Introduced
1975