CANON EF400mm f/5.6L USM Lens

  • Filter size : 77mm
  • Max aperture : f/5.6
  • With ring USM motor
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EF400mm f/5.6L USM

This is a high-performance 400mm super telephoto lens featuring an extremely light and compact design ideal for photographers requiring high mobility and portability. The optical system incorporates one element made of Super UD glass and on element made of standard UD glass, thus effectively correcting colour aberration and delivering extremely sharp, high-contrast imaging performance. Other features that ensure convenient operation include a built-in hood, a removable ring-type tripod mount, and a focus range selector that allows the user to select the full 3.5m/11.5ft.-to-infinity distance range or restrict the range to 8.5m/27.9ft.-to-infinity.

  • Focal length and maximum aperture : 400 mm 1:5.6
  • Lens construction : 7 elements in 6 groups
  • Diagonal angle of view : 6° 10’
  • Focus adjustment : Ring-type USM, rear focusing system, full-time manual focus
  • Closest focusing distance : 3.5 m/ 11.5 ft., 0.12 x magnification
  • Filter size : 77 mm
  • Max. diameter x length, weight : ø 90 x 256.5 mm, 1,250 g/ 3.5” x 10.1”, 2.8 lbs.



Angle of View (Diagonal) 6°10’
Angle of View (Horizontal) 5°10’
Angle of View (Vertical) 3°30’
Closest Focusing Distance (m, ft) 3.5/11.5
Construction (groups elements) 6-7
Diameter x Length (mm) (Max.) 90 x 256.5
Distance Scale o
Drive System Ring-type USM
Filter Size (mm) 77
Max. Magnification (x) 0.12
Min. Aperture 32
No. of Diaphragm Blades 8
Anti-dust and Moisture Not Supported
Weight (g) (Approx.) 1250
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