N°110472 · Family detail
CanonTelephoto·CANON EF mount·1993
Canon EF 400mm F/5.6L USM
Specifications01
MountCANON EF
Focal length400mm
Max aperturef/5.6
TypeTelephoto · Prime
Release year1993
Weight1250 g
Filter size77 mm
Physical length257 mm
Min focus distance3.5 m
Max magnification0.12
Aperture blades8
Optical elements7
Groups6
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera
Lens hoodBuilt-in telescopic round
TeleconvertersCanon Extender EF 1.4X→ 560mm F/7.8
Canon Extender EF 1.4X II→ 560mm F/7.8
Canon Extender EF 1.4X III→ 560mm F/7.8
Canon Extender EF 2X→ 800mm F/11.2
Canon Extender EF 2X II→ 800mm F/11.2
Canon Extender EF 2X III→ 800mm F/11.2
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeSuper telephoto prime lens
Field Notes02
Canon EF 400mm prime telephoto lens with maximum aperture f/5.6 and USM autofocus, intended for outdoor sports, wildlife, and other distant subjects on Canon EF mounts.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.