Review Lens: Canon EF 400mm f/2.8L IS II USM

Lens Overview - Canon EF 400mm f/2.8

Pairing a favored super telephoto focal length with a bright f/2.8 maximum aperture, the EF 400mm f/2.8L IS III USM is a Canon L-series optic well-suited for outdoor, wildlife, and sports applications. This version III of this prized lens features a lighter weight design along with a sophisticated optical layout and updated handling capabilities. The fast maximum aperture enables extensive control over depth of field for isolating subjects using selective focus, and it also benefits working in difficult lighting conditions. Both Super UD and fluorite elements are used in the optical design to help reduce color fringing and chromatic aberrations for high clarity and color accuracy, and Super Spectra and Air Sphere Coatings have been applied to individual elements to suppress flare and ghosting for increased contrast and color neutrality when working in backlit conditions.

Beyond the optical attributes, this 400mm f/2.8 is also characterized by its advanced five stop-effective Image Stabilizer system, which has three separate stabilization modes to suit various shooting applications. Also complementing handling is a sophisticated ring-type USM, which provides quick, quiet, and accurate autofocus performance along with full-time manual focus override. A customizable electronic focusing ring further contributes to precise manual focus control, by affording three focusing sensitivity levels for different applications. Additionally, this lens is weather-sealed for use in trying environmental conditions, and it has a removable rotating tripod collar to benefit working atop a tripod or monopod.

Super telephoto prime is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 640mm equivalent focal length.
Fast f/2.8 maximum aperture benefits working in low-light conditions and also affords significant control over depth of field for working with selective focus techniques.
Super UD and fluorite elements are used to greatly reduce color fringing and chromatic aberrations in order to achieve greater clarity and color accuracy.
Super Spectra and Air Sphere Coatings have been applied to individual elements to control lens flare and ghosting for greater contrast and color fidelity when working in strong lighting conditions.
An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to five shutter speed stops to better enable working in low-light conditions and with slower shutter speeds. Three distinct IS modes are available: standard single-shot mode, a panning-optimized mode, and a mode that only activates the Image Stabilizer during the exposure.
A ring-type Ultrasonic Motor (USM), along with optimized focusing algorithms and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.
Customizable electronic focusing ring provides three sensitivity levels for how quickly and precisely the lens can manually focus.
Focus Preset function is available to quickly recall a programmed focusing position.
Rounded nine-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.
As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions and also features a fluorine coating on the front and rear elements to guard against water spots, smudges, or oil residue.
Removable rotating tripod collar is included and benefits working with the lens atop a tripod or monopod.
Compatible with optional EF 1.4X and EF 2X teleconverters.
UPC: 013803306026

Canon EF 400mm f/2.8 Latest Price



Focal Length400mm
Maximum Aperturef/2.8
Minimum Aperturef/32
Lens MountCanon EF
Format CompatibilityFull-Frame
Angle of View6° 10'
Minimum Focus Distance8.2' / 2.5 m
Maximum Magnification0.17x
Optical Design17 Elements in 13 Groups
Diaphragm Blades9, Rounded
Focus TypeAutofocus
Image StabilizationYes
Tripod CollarRemovable and Rotating
Filter Size52 mm (Drop-In)
Dimensions (ø x L)6.42 x 13.5" / 163 x 343 mm
Weight6.25 lb / 2840 g

Photos Example - Canon EF 400mm f/2.8

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Lens Technical

400mm f/2.8L IS II USMPentax HD DA* 11-18mm F2.8 ED DC AWCanon RF 70-200mm F2.8L IS USM
Name Canon EF 400mm f/2.8L IS II USMPentax HD DA* 11-18mm F2.8 ED DC AWCanon RF 70-200mm F2.8L IS USM
Max Aperture At Min Focal f/2.8f/2.8f/2.8
Year 201020192019
Mount Type Canon EFPentax KAFCanon RF
Lens Type Lens SupertelephotoLens SuperwideLens Medium,lens Telephoto,lens Supertelephoto
Auto Focus NoNoNo
Price $10499$1840
Lens Zoom PrimeZoomZoom
Lens Range 4001170
Global 37.9571
Effective Mega Pixel 35.8891
Distorsion 0.133
Vignetting -1.12622
Tstop 3.06861
Ac 6.42153
Vignetting Ranking 8271
Tstop Ranking 4421
Ac Ranking 3732
Pixel Depth 50.6
Price Sensor 3900
Sensor Raw 51.16
Sensor Format Sensor Fullframe
Type SemiProDSLR
Zoom Factor 111
Weight 1lb1lb1lb
Macro NoNoNo
Launch Date Sep. 2010Jan. 2019Feb. 2019
Brand CanonPentaxCanon


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