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Canon EF 400mm f/5.6L USM lens


  • designed in 1993, this is one of the lenses which gave Canon the lead over Nikon with its relatively fast USM AF capability and excellent optics and build quality
  • it is reasonably affordable and popular with birders but lacks image stabiliser and thus requires use of a tripod
  • most people would be better off with the Canon EF 100-400mm f/4.5-5.6L IS II USM


Image courtesy of Ken Rockwell


  • 400mm f/5.6
  • metal build
  • not fully weather sealed only moisture seal on lens mount
  • close focus 3.5m giving 0.12x macro on full frame
  • 8 straight blades
  • 7 elements in 6 groups including one S-UD and one UD element
  • removable tripod collar
  • 77mm filter
  • dual manual focusing rings
  • focus limiter switch allowing focus range to be limited to 8.5m-∞ or 3.5m-∞
  • 3.5 x 10.1“ (88.9mm x 256.5 mm)
  • 2.75 lb (1.25 kg)
  • $US1249


photo/canonef400mmf5.6.txt · Last modified: 2016/01/09 14:12 by gary1

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