Focus
Manual
Mount
RMS thread (microscope)
Format
35mm full frame
Groups
3
Elements
4
Weight
50g
Spec Notes
Bellows-only high-magnification macro (4x-12x), RMS microscope thread via the PM-MTob adapter. Continuously-variable manual diaphragm (no clicks). Five SC/MC versions across serials 200xxx-301xxx fold. Produced 1972-1985.
Max Aperture
f/3.5
Aperture Blades
8
Introduced
1972
Focal Length (Max)
20mm
Focal Length (Min)
20mm