Focus
Manual
Mount
Pentax K
Format
35mm full frame
Groups
5
Elements
5
Weight
225g
Filter Thread
49mm
Spec Notes
5/5, 49mm. Shares its optical layout with the A 100/2.8 (barrel/coupling differ). Produced 1977-1984.
Max Aperture
f/2.8
Min Focus Distance
100cm
Aperture Blades
6
Introduced
1977