N°109568 · Family detail
CanonTelephoto·CANON EF mount·1991
Canon EF 300mm F/4L USM
Specifications01
MountCANON EF
Focal length300mm
Max aperturef/4
TypeTelephoto · Prime
Release year1991
Weight1165 g
Filter size77 mm
Min focus distance2.5 m
Max magnification0.1299
Aperture blades8
Optical elements8
Groups7
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera
Lens hoodBuilt-in telescopic round
TeleconvertersCanon Extender EF 1.4X→ 420mm F/5.6
Canon Extender EF 1.4X II→ 420mm F/5.6
Canon Extender EF 1.4X III→ 420mm F/5.6
Canon Extender EF 2X→ 600mm F/8
Canon Extender EF 2X II→ 600mm F/8
Canon Extender EF 2X III→ 600mm F/8
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeSuper telephoto prime lens
Field Notes02
Canon EF 300mm f/4L prime telephoto lens for Canon EF-mount cameras. Fixed 300mm focal length with f/4 maximum aperture for outdoor sports, wildlife, and portraits; uses USM autofocus.
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Other Mounts03
No alternate mounts are indexed for this family yet.