Mount
Leica M
Groups
4
Elements
8
Weight
301g
Filter Thread
48mm
Length mm
51
Diameter mm
52.5
Max Aperture
f/3.4
Min Aperture
f/22
Min Focus Distance
40cm
Production End
1980
Aperture Blades
4
Introduced
1963
Focal Length (Max)
21mm
Focal Length (Min)
21mm
Production Start
1963