Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
5
Elements
6
Weight
165g
Filter Thread
49mm
Spec Notes
6/5 (same optics as the M 50/1.7) with A contacts. 49mm filter. Produced 1984-1989.
Max Aperture
f/1.7
Min Focus Distance
45cm
Aperture Blades
6
Introduced
1984