Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
4
Elements
4
Weight
3370g
Filter Thread
52mm
Spec Notes
Refractive. 52mm REAR DROP-IN filter. No M or A version was made. Produced 1975-~mid1980s.
Max Aperture
f/4.5
Min Focus Distance
1000cm
Aperture Blades
10
Introduced
1975