Focus
Manual
Mount
Olympus OM
Format
35mm full frame
Groups
10
Elements
13
Weight
780g
Filter Thread
55mm
Length mm
140
Spec Notes
5x constant-aperture tele zoom. One version.
Max Aperture
f/5
Min Focus Distance
153cm
Aperture Blades
8
Introduced
1985
Focal Length (Max)
250mm
Focal Length (Min)
50mm