Specifications for the EF 400mm f/4 DO IS USM lens
Article ID: ART174653 | Date published: 06/03/2019 | Date last updated: 06/03/2019


Specifications for the EF 400mm f/4 DO IS USM lens


Focal Length & Max. Aperture 400mm, f/4
Lens Construction 17 groups, 13 elements
Minimum Aperture f/32
Angle of View Diagonal: 6°10'
Vertical: 3°30'
Horizontal: 5°10'
Min. focusing Distance 3.5 m
Max. Magnification 0.12x
Field of View Approx. 197 x 232.7 mm/
7.7  x 11.6 inch (at 3.5m)
Max. diameter and Length 128 x 232.7 mm/5 x 9.1 inch
Weight 1940 g/67.9 oz
Hood ET-120
Lens Cap ET-145
Case Lens case 400B
  • The lens length is measured from the mount surface to the front end of the lens. Add 26.5 mm when including the lens cap and dust cap.
  • The size and weight listed are for the lens only, except as indicated.
  • The Close-up Lenses 250D and 500D cannot be attached.
  • Aperture settings are specified on the camera.
  • All data listed is measured according to Canon standards.
  • Product specifications and appearance are subject to change without notice.