Focus
Autofocus
Macro
Yes
Mount
Pentax KAF2
Format
35mm full frame
Groups
7
Elements
8
Weight
385g
Filter Thread
52mm
Spec Notes
AF native 1:1, 52mm. Optically the F 50/2.8 Macro re-badged. Produced 1990-2004.
Max Aperture
f/2.8
Min Focus Distance
19cm
Aperture Blades
8
Introduced
1990
Reproduction Ratio
1:1