Lens
Llens
Summicron-M 50/2 (Type 4)
39mm filter · 195g
Focal length
50mm
Max Aperture
f/2
Weight
195g
Filter Thread
39mm
Min Focus Distance
70cm
Produced 1980–1995CameraQuest M-lens guideblack w/ "50" + focus lever, recomputed 6 el; 1980 start = just outside pre-1980
Date this from its serial number →Mount: Leica M — compatible with all Leica M-mount bodies.
Mount
Leica M
Groups
4
Elements
6
Weight
195g
Filter Thread
39mm
Max Aperture
f/2
Min Aperture
f/16
Min Focus Distance
70cm
Production End
1995
Aperture Blades
8
Introduced
1980
Focal Length (Max)
50mm
Focal Length (Min)
50mm
Production Start
1980