Lens
Clens
EF20-35mm f/3.5-4.5 USM
Full-frame zoom · 77mm filter · 340g
Focal length
20–35mm
Max Aperture
f/3.5
Weight
340g
Filter Thread
77mm
Min Focus Distance
34cm
Mount: Canon Ef — compatible with all Canon Ef-mount bodies.
Motor
ring USM
Groups
11
Elements
12
Weight
340g
Filter Thread
77mm
Length mm
68.9
Diameter mm
83.5
Max Aperture
f/3.5
Min Aperture
f/22
Discontinued
Yes
Min Focus Distance
34cm
Motor Source
secondary (EOS Magazine)
Aperture Blades
5
Introduced
1993
Focal Length (Max)
35mm
Focal Length (Min)
20mm
Full Time Manual
Yes
Aperture Max Tele
4.5
Max Magnification
0.13
Aperture Min Range
22-27
Image Stabilization
No