Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
12
Elements
13
Weight
595g
Spec Notes
Reuses the K 15/3.5 optics (13/12) with A contacts + 5 blades. Built-in filters (no front thread). Long run 1984-2004.
Max Aperture
f/3.5
Min Focus Distance
30cm
Aperture Blades
5
Introduced
1984