Specifications - Canon ULTRASONIC EF400mm f/2.8L IS III USM Instructions Manual

Specifications

Focal Length/Aperture
Lens Construction
Minimum Aperture
Angle of View
Min. Focusing Distance
Max. Magnification
Field of View
Filter
Max. Diameter and Length
Weight
Hood
Lens Cap
Case
The lens length is measured from the lens mount surface to the front end of the lens.
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The max. diameter × length and weight listed are for the lens only.
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The Close-up Lenses 250D and 500D cannot be attached.
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Aperture settings are specified on the camera.
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All data listed is measured according to Canon standards.
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Product specifications and appearance are subject to change without notice.
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400mm f/2.8
13 groups, 17 elements
f/32
Horizontal: 5° 10' Vertical: 3° 30' Diagonal: 6° 10'
2.5 m/8.2 ft.
0.17×
Approx. 202 × 135 mm/7.95 × 5.31 in. (at 2.5 m / 8.2 ft.)
Any 52(WIII)-series drop-in filter
163 × 343 mm/6.42 × 13.50 in.
Approx. 2840 g/100.2 oz
ET-155 (WIII)
ET-155B (sold separately)
E-180E
LS400
400E (sold separately)
ENG-27