Canon EF 400mm F4.0 DO IS USM Specifications
Diagonal Angle of View:
Number of Aperture Blades:
52mm via filter holder
Ring-USM, internal focus mechanism
Dual Pixel CMOS AF:
E-TTL II Distance Information:
ET-120 (pull-on, screw-locked)
The lens received the TIPA Interchangeable Lens Award 2002. It features a focus limiter (3.5m - ∞, 8m - ∞) and tripod detection and comes with detachable tripod collar.
*There seem to be some minor incompatibilities and dysfunctionalities when using IS lenses with their IS activated with older analog EOS camera models. See EOS Documentation Project for details (slightly different for the 75-300mm 4.0-5.6 IS USM here).
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