EF400mm f/2.8L IS III USM

Specifications

Angle of View (Diagonal)	6°10’
Angle of View (Horizontal)	5°10’
Angle of View (Vertical)	3°30’
Closest Focusing Distance (m, ft)	2.5 / 8.20
Construction (Groups Elements)	13-17
Diameter x Length (mm) (Approx.)	163 x 343
Distance Scale	o
Drive System	Ring-type USM
Filter Size (mm)	52 (Drop-in)
Max. Magnification (x)	0.17
Min. Aperture	32
No. of Diaphragm Blades	9
Anti-dust and Moisture	Supported
Weight (g) (Approx.)	2840

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