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Feature

Revised Optics for a lighter Super telephoto EF L Lens
Continues strong tradition of image quality associated with L-Series lenses
Super spectra coating (ssc) and Air sphere coating (asc) minimizes ghosting and flare
Increased heat shielding measures for reliable, longer shooting outdoors
Dust- and water-resistant with fluorine coatings for use even in harsh conditions

Description

The EF 400mm f/2.8L is III USM is a Canon L-series optic well-suited for outdoor, wildlife, and sporting events. This version III features a lighter weight design along with a sophisticated optical layout and updated handling capabilities.