Focus
Manual
Mount
Olympus OM
Format
35mm full frame
Groups
4
Elements
5
Weight
200g
Filter Thread
49mm
Length mm
40
Spec Notes
Standard macro (to 1:2 unaided, 1:1 with Extension Tube 25). First 35mm-camera macro with floating elements. Four coating/marking versions by serial block (silver > black > MC > no-MC) — optics constant, folded. Produced 1972-2002.
Diameter mm
61
Max Aperture
f/3.5
Min Focus Distance
23cm
Aperture Blades
6
Introduced
1972
Focal Length (Max)
50mm
Focal Length (Min)
50mm