Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
7
Elements
8
Weight
295g
Filter Thread
52mm
Spec Notes
THORIATED (mildly radioactive) rear element - characteristic amber yellowing. 52mm filter. DISTINCT design from the non-radioactive M/A 35/2 (7/7). Produced 1975-1977.
Radioactive
Yes
Max Aperture
f/2
Min Focus Distance
35cm
Aperture Blades
6
Introduced
1975