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Canon EF 400 mm f/ 4 DO IS USM Lens

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Canon EF 400 mm f/ 4 DO IS USM lens

Optical design

Canon EF 400 mm f/ 4 DO IS USM optical design

Format: 35mm SLR

Type: Prime lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S

First year of production: 2001

Optical design: 17 elements in 13 groups

Features: Ultra-Sonic Motor, Optical stabilisation
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Additional information:

The Canon EF 400 mm f/ 4 DO IS USM

  • Max. magnification 0.12
  • Diameter 128 mm

The Canon EF 400mm f/4 DO IS USM  is a telephoto lens equipped with an image stabilizer and multilayer diffractive optical elements (DO)f or 35 mm Canon EF SRL cameras.

Diffractive optical elements make it possible to considerably reduce both weight and size of telephoto lenses, keeping up image quality. Besides, all major aberrations are well corrected.

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Posted by: dv   Date of publication: 26.09.2011

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