Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
5
Elements
5
Weight
1285g
Filter Thread
77mm
Spec Notes
Refractive. Manual diaphragm (10 blades), 77mm. Produced 1975-1977.
Max Aperture
f/5.6
Min Focus Distance
800cm
Aperture Blades
10
Introduced
1975