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Specifications
● The lens length is measured from the mount surface to the front end of the lens. Add
26.5 mm when including the lens cap and dust cap.
● The size and weight listed are for the lens only, except as indicated.
● The Close-up Lenses 250D and 500D cannot be attached.
● Aperture settings are specified on the camera.
● All data listed is measured according to Canon standards.
● Product specifications and appearance are subject to change without notice.
EF300mm f/2.8L IS USM EF400mm f/2.8L IS USM
Focal Length/Aperture 300 mm f/2.8 400 mm f/2.8
Lens Construction 13 groups, 17 elements 13 groups, 17 elements
Minimum Aperture f/32 f/32
Angle of View Diagonal: 8° 15’ Diagonal: 6° 10’
Vertical: 4° 35’ Vertical: 3° 30’
Horizontal: 6° 50’ Horizontal: 5° 10’
Min. Focusing Distance 2.5 m/8.2 ft. 3 m/9.8 ft.
Max. Magnification 0.13× 0.15×
Field of View Approx. 176 × 264 mm/ Approx. 155 × 233 mm/
6.9 × 10.4 inch (at 2.5 m/8.2 ft.) 6.1 × 9.2 inch (at 3 m/9.8 ft.)
Filter Any 52-series drop-in filter
Max. Diameter and Length 128 × 252 mm/5.0 × 9.9 inch 163 × 349 mm/6.4 × 13.7 inch
Weight 2550 g/90.0 oz 5370 g/189.4 oz
Hood ET-120 ET-155
Lens Cap E-145 E-180C
Case Lens case 300 Lens case 400
02-7524_ENG 10.2.13 9:39 AM Page 19
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