Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
5
Elements
6
Weight
185g
Filter Thread
49mm
Spec Notes
Common M standard. 6/5, 49mm filter. Same optics as the A 50/1.7 (recorded per badge). Produced 1977-1984.
Max Aperture
f/1.7
Min Focus Distance
45cm
Aperture Blades
6
Introduced
1977