Lens
Clens
FD20mm f/2.8 S.S.C.
72mm filter · 345g
Focal length
20mm
Max Aperture
f/2.8
Weight
345g
Filter Thread
72mm
Min Focus Distance
25cm
Mount: Canon Fd — compatible with all Canon Fd-mount bodies.
Groups
9
Coating
S.S.C. (Super Spectra Coating)
Elements
10
Weight
345g
Filter Thread
72mm
Length mm
58
Breech Lock
Yes
Diameter mm
75
Max Aperture
f/2.8
Min Aperture
f/22
Discontinued
Yes
Min Focus Distance
25cm
Aperture Blades
6
Introduced
1973
Focal Length (Max)
20mm
Focal Length (Min)
20mm
Manual Focus Only
Yes
Max Magnification
0.126