Every Canon EF Lens: Read the Reviews, See the Specification & Check the Price
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Overview

The 400mm is immediately notable by its relatively huge front element. At f/2.8 it offers razor thin depth of field and clarity. Godd stabilisation and rapid focus.

Available from: Amazon.com | Amazon.co.uk | B&H | Adorama

Lens specifications

Focal Length & Maximum Aperture 400mm 1:2.8
Lens Construction 17 elements in 13 groups
Diagonal Angle of View 6° 10'
Focus Adjustment Ring type USM, inner focusing system, full-time manual focus
Closest Focusing Distance 3m / 9.8 ft., 0.15 x magnification
Filter Size 52mm rear drop in
Max. Diameter x Length, Weight 163 x 349mm / 6.4" x 13.7"; 5.370g / 11.8 lbs

EF400mm f/2.8L IS USM super telephoto lens block diagram

Which 400mm? - a list of all versions

Canon EF 400mm
Attribute f/2.8 USM f/2.8 II USM f/2.8 IS USM f/2.8 IS II USM f/4 DO IS USM f/5.6 USM f/4 DO IS II USM
Key features
Full-frame compatible Yes
Image stabilizer No Yes No Yes
Ultrasonic Motor Yes
L-series Yes
Diffractive Optics No Yes No Yes
Technical data
Aperture (max-min) f/2.8-f/32 f/4-f/32 f/5.6-f/32
Construction 9 groups / 11 elements 13 groups / 17 elements 6 groups / 7 elements 12 groups /18 elements
Aperture blades 8 9 8
Closest focusing distance 4m 3m 2.7m 3.5m 3.3m
Max. magnification 0.11x 0.15x 0.17x 0.12x 0.11x
Diagonal viewing angle 6 °
Physical data
Weight 13.44 lb / 6.1 kg 13.03 lb / 5.91 kg 11.83 lb / 5.37 kg 8.48 lb / 3.85 kg 4.27 lb / 1.94 kg 2.8 lb / 1.25 kg 2.1 kg
Maximum diameter 6.57" / 167mm 6.41" / 163mm 5.03" / 128mm 3.54" / 90mm/ 5.04" /128mm
Length 13.70" / 348mm 13.74" / 349mm 13.50" / 343mm 9.16" / 232.7mm 10.09" / 256.5mm 9.16" / 232.7mm
Filter diameter 48mm 52mm drop-in filter 77mm 53mm drop-in
Accessories
Lens hood ET-161B II   ET-155 ET-155 (WII) ET-120 Built-in
Case     400 400C 400B  
Retail information
Release date April 1991 March 1996 September 1999 August 2011 December 2001 May 1993 September 2014

EF400mm f/2.8L IS USM reviews and articles

Written a review? Contact us and we'll add it to the list.

Sample images

None available at present.

Product launch

No information available on the 1999 launch of this lens.

Used Canon Lenses
• UK: MPB
• USA: B&H | Adorama
Every Canon EF Lens: Read the Reviews, See the Specification & Check the Price
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