16 elements in 12 groups (Including drop-in rear filter, Fluorite: G2 and G4, UD Lens: None)
Diagonal Angle of View
Inner focusing system, with focusing cam
Closest Focusing Distance
2.7m / 8.86 ft.
Max. Diameter x Length, Weight
6.4 x 13.5 in, 135.8 oz. / 163.0 x 343.0mm, 3850g
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Description: The stellar combination of superlative optics, astonishing performance and brilliant construction, the EF 400mm f/2.8 IS II USM super telephoto is the professional's choice for a long lens, and perfect for nature and wildlife photography. Over 28% lighter than its predecessor and now the lightest lens in its class, the EF 400mm f/2.8 IS II USM features Fluorite optics that deliver sharper images with less chromatic aberration,... read more