Lens
Llens
Super-Angulon-M 21/4
39mm filter · 240g
Focal length
21mm
Max Aperture
f/4
Weight
240g
Filter Thread
39mm
Min Focus Distance
40cm
Produced 1958–1963CameraQuest M-lens guideSchneider design, all-chrome, M + screw
Date this from its serial number →Mount: Leica M — compatible with all Leica M-mount bodies.
Mount
Leica M
Groups
4
Coating
single-coated
Elements
9
Weight
240g
Filter Thread
39mm
Length mm
47.3
Diameter mm
51
Max Aperture
f/4
Min Aperture
f/22
Min Focus Distance
40cm
Production End
1963
Aperture Blades
9
Introduced
1958
Focal Length (Max)
21mm
Focal Length (Min)
21mm
Production Start
1958