Focus
Manual
Mount
Olympus OM
Format
35mm full frame
Elements
8 elements in 7 groups
Weight
170g
Filter Thread
49mm
Length mm
42
Production
1973–1987
Stabilized
No
Diameter mm
63
Max Aperture
f/2.8
Min Aperture
f/16
Focal Length
28mm
Min Focus Distance
30cm
Weather Sealed
No
Aperture Blades
6