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Canon EF 400mm f/4 DO IS II USM

see also:


  • a unique diffraction optics (DO) optical design allowing a much more compact lens but characteristic DO aberrations


  • 400mm f/4
  • image stabiliser allows hand held shots to 1/25th sec with some success
  • USM AF
  • internal focus
  • 52mm rear drop in filters
  • 9 blades
  • 18 elements in 12 groups
  • weathersealed
  • close focus 3.3m
  • Lens hood: ET-120 (WII)
  • 1.4x and 2x teleconverters can both be used with this lens to add more flexibility, although using a 2x converter will result in a slow maximum aperture of f/8 with this lens, which may also cause autofocus issues on some Canon camera bodies
  • 233mm long
  • 2.1kg
  • ~$A7500 for version I and ~$A9000 for version II (the f/2.8 lens is ~$A12000)


photo/canonef400mmf4do.txt · Last modified: 2015/09/15 23:39 by gary1

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