Canon lens EF 400mm f28L IS USM User Manual

							ENG-20
17.  
Extension Tubes 
(Sold Separately)
You can attach extension tube EF12 II or EF25 
II for magnified shots. The shooting distance and 
magnification are shown below.
EF300mm f/2.8L IS II USM
EF400mm f/2.8L IS II USM
MF mode is recommended for accurate focusing.
Focusing Distance Range (mm)Magnification (×)Close distanceLong distanceClose distanceLong distanceEF12 II 1700 7529 0.22 0.04
EF25 II 1480 3727 0.28 0.09
Focusing Distance Range (mm)Magnification (×)Close distanceLong distanceClose distanceLong distanceEF12 II 2375 13353 0.21 0.03
EF25 II 2113 6494 0.26 0.07
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							ENG-21
Specifications
The lens length is measured from the mount surface to the front end of the lens. Add 26.5 mm 
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when including the lens cap and dust cap.
The size and weight listed are for the lens only, except as indicated.
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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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EF300mm f/2.8L IS II USM EF400mm f/2.8L IS II USM
Focal Length/Aperture 300mm f/2.8400mm f/2.8
Lens Construction 12 groups, 16 elements 12 groups, 16 elements
Minimum Aperture f/32f/32
Angle of View Diagonal: 8° 15’ 
Vertical: 4° 35’  
Horizontal: 6° 50’ Diagonal: 6° 10’ 
Vertical: 3° 30’  
Horizontal: 5° 10’
Min. Focusing Distance 2 m/6.6 ft.2.7 m/8.9 ft.
Max. Magnification 0.18×0.17×
Field of View Approx. 136 × 205 mm/ 
5.4 × 8.1 inch (at 2 m/6.6 ft.) Approx. 139 × 208 mm/ 
5.5 × 8.2 inch (at 2.7 m/8.9 ft.)
Filter Any 52(WII)-series drop-in filter
Max. Diameter and Length 128 × 248 mm/5.0 × 9.8 inch 163 × 343 mm/6.4 × 13.5 inch
Weight Approx. 2350 g/82.9 oz Approx. 3850 g/135.8 oz
Hood ET-120(WII)ET-155(WII)
Lens Cap E-145CE-180D
Case Lens case 300BLens case 400C
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							CT1-8570-004 1208SZ © CANON INC. 2011 
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