Lens
Clens
EF 400mm f/5.6L USM
Full-frame zoom · 77mm filter · 1250g
Max Aperture
f/5.6
Weight
1250g
Filter Thread
77mm
Min Focus Distance
350cm
Mount: Canon EF — compatible with all Canon EF-mount bodies.
Focus
Autofocus
Mount
Canon EF
Format
35mm full frame
Groups
6
Elements
7
Weight
1250g
Filter Thread
77mm
Length mm
256.5
Spec Notes
Canon Museum, May 1993. Genuine 77mm FRONT thread (not drop-in). Beloved birding lens.
Stabilized
No
Diameter mm
90
Max Aperture
f/5.6
Min Focus Distance
350cm
Aperture Blades
8
Min Focus Basis
Canon: from focal plane
Introduced
1993