Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
8
Elements
9
Weight
194g
Filter Thread
52mm
Spec Notes
52mm filter (PentaxForums; allphotolenses says 49mm - CONFLICT, 52mm adopted). Produced 1977-1984.
Max Aperture
f/2.8
Min Focus Distance
25cm
Aperture Blades
5
Introduced
1977