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Additionally, the EF 400mm f/2.8L IS USM's magnesium build ensures lightness and durability.

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works well in low light without significant grain

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zoom range is more than adequate for almost any situation

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shallow depth of field makes action shots look very exciting

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ideal for action and sports, catches moving subjects very sharply

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AF is extremely fast and adjusts on the fly perfectly

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great light-gathering with excellent contrast

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very heavy construction, going to need a monopod to work with it

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The Canon EF 400mm f/2.8L IS USM is a top-of-the-line professional camera lens best suited for track and field sports as well as low-light nature and wildlife photography. Its fluorite and UD lenses help to ensure optimal picture while its inner focusing system with USM provides extremely fast autofocusing. Additionally, the EF 400mm f/2.8L IS USM's magnesium build ensures lightness and durability.

The EF 400mm f/2.8L IS USM features a single fluorite lens and dual UD lenses which work together to eliminate secondary spectrum chromatic aberrations, resulting in ultra-high contrast and image quality. Its inner focusing system features a USM drive with an advanced autofocusing algorithm which provides the EF 400mm f/2.8L IS USM with the fastest autofocusing in the world when use with Canon's EOS-1v and EOS-3 cameras. Meanwhile, the EF 400mm f/2.8L IS USM's magnesium build provides lightweight durability while its dust-proof and moisture-proof seals allow it to be used in more extreme weather conditions.


  • Focal length and maximum aperture: 400mm 1:2.8
  • Lens Construction (elements/groups): 17/13
  • Diagonal Angle of View: 6°10'
  • Focus adjustment: Inner focusing system with USM
  • Closest Focusing Distance (m): 3
  • Filter Diameter (mm): 52 Rear Drop-in
  • Fluorite and UD lenses eliminate chromatic aberrations
  • Magnesium build and water-proof/dust-proof seals
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