Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
7
Elements
7
Weight
170g
Filter Thread
49mm
Spec Notes
Two cosmetic sub-versions same 7/7 optics (early ~156g / later ~170g) folded into this one row. 49mm filter. Produced 1977-1984.
Max Aperture
f/2.8
Min Focus Distance
30cm
Aperture Blades
5
Introduced
1977