Canon EF 400mm f/4 DO IS II USM Lens

BH #CA4004ISEFM2 • MFR #8404B002
Canon EF 400mm f/4 DO IS II USM Lens
Key Features
  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/32
  • Gapless Dual-Layer Diffractive Optics
  • One Aspherical Element, One UD Element
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Featuring a unique optical design and paired with advanced image stabilization technologies, the Canon EF 400mm f/4 DO IS II USM is a super telephoto lens characterized by its relative lightweight and compact form factor. Gapless dual-layer diffractive optics are employed within this lens' construction to produce a smaller, lighter 400mm option with enhanced correction for chromatic and spherical aberrations. Aspherical and UD elements are also used to further reduce distortions and a Sub Wavelength Coating contribute to increased clarity and contrast. Complementing the sophisticated optical layout, a four stop-effective Image Stabilizer helps to minimize the appearance of camera shake and can be dedicated to different styles of shooting. Ideally positioned as a versatile option for sports and wildlife photographers, this lens' high-performance attributes and natural handling render this a viable telephoto option for a variety of applications.
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Canon EF 400mm f/4 DO IS II USM Overview

Featuring a unique optical design and paired with advanced image stabilization technologies, the Canon EF 400mm f/4 DO IS II USM is a super telephoto lens characterized by its relative lightweight and compact form factor. Gapless dual-layer diffractive optics are employed within this lens' construction to produce a smaller, lighter 400mm option with enhanced correction for chromatic and spherical aberrations. Aspherical and UD elements are also used to further reduce distortions and a Sub Wavelength Coating contribute to increased clarity and contrast. Complementing the sophisticated optical layout, a four stop-effective Image Stabilizer helps to minimize the appearance of camera shake and can be dedicated to different styles of shooting. Ideally positioned as a versatile option for sports and wildlife photographers, this lens' high-performance attributes and natural handling render this a viable telephoto option for a variety of applications.

Housed within a weather-resistant barrel, this lens also features fluorine coatings on the front and rear elements for protection against fingerprints and other elements from affecting image quality. Focusing is complemented by the inclusion of AF stop buttons at the front of the lens, as well as full-time manual focus override and Power Focus mode for smooth shifting of focus.

Super telephoto 400mm f/4 lens is compatible with full-frame EF-mount DSLR cameras, as well as APS-C-sized sensors where it will provide a 640mm equivalent focal length.
Gapless dual-layer diffractive optics contribute to a marked reduction in chromatic and spherical aberrations as well as benefit the design of a relatively compact and lightweight lens.
One large diameter ground aspherical element and one ultra-low dispersion UD element minimize aberrations and distortions while also contributing to greater sharpness and clarity.
A Sub Wavelength Coating has 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 four 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.
Focus Preset function is available to quickly recall a programmed focusing position.
Focus Limiter switch lets you constrain the focusing to three different ranges to suit different applications: 10.8-26.2', 10.8'-infinity, or 26.2'-infinity.
A Power Focus setting is available, and allows you to electronically and smoothly adjust your focus position to suit video recording. This setting utilizes a dedicated ring in front of the main focusing ring and allows you to use one of two different focusing speeds.
A weather-resistant design protects the lens from dust and moisture to enable its use in inclement conditions. Additionally, fluorine coatings have also been applied to the front and rear lens elements for further protection against fingerprints and smudging.
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.
Fixed rotating tripod collar benefits working with the lens atop a tripod or monopod.
Compatible with optional EF 1.4X and EF 2X teleconverters.
UPC: 013803217049

Canon EF 400mm f/4 DO IS II USM Specs

Focal Length400mm
Maximum Aperturef/4
Minimum Aperturef/32
Lens MountCanon EF
Format CompatibilityFull-Frame
Angle of View6° 10'
Minimum Focus Distance10.83' / 3.3 m
Maximum Magnification0.13x
Optical Design18 Elements in 12 Groups
Diaphragm Blades9, Rounded
Focus TypeAutofocus
Image StabilizationYes
Tripod CollarFixed and Rotating
Filter Size52 mm (Drop-In)
Dimensions (ø x L)5.04 x 9.16" / 128 x 232.7 mm
Weight4.63 lb / 2.1 kg
Packaging Info
Package Weight14.4 lb
Box Dimensions (LxWxH)19 x 16 x 14"
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When using the 400 DOII lens with the EF to RF ...

When using the 400 DOII lens with the EF to RF filter adapter (which of course will have its own drop in filter of choice), does one remove the neutral drop in filter fitted with the lens for leave it in? Thanks
Asked by: Isaac
The filter can stay in place.
Answered by: Kirk
Date published: 2020-12-17

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I have an EOS1V film camera, will this work on it?
Asked by: Stephanie S.
Perfectly
Answered by: Michael
Date published: 2020-02-20

Does this lens come with the Hood?

Does this lens come with the Hood?
Asked by: Irene
Yes, this lens comes with the Canon ET-120W II lens hood.
Answered by: Khalid
Date published: 2019-07-23

I have a 7D Mark 2 camera. Will the 400 f/4 DO II ...

I have a 7D Mark 2 camera. Will the 400 f/4 DO II auto focus all points with both the 1.4iii extender and the 2.0iii extender ?
Asked by: Fred
Sorry, but in the world of super telephotos and 2x extenders, you are lucky to have any AF focus points. On the 7D Mark II with the 400mm f/4 and the 2x III, the fastest stop is f/8. With that stop, you get the center AF point with its cross point focusing. The points immediately above, below, left and right are regular AF and are available if you select AF point expansion (manual selection).
Answered by: Dennis A
Date published: 2019-12-08

question

Anybody using this lens with 2X III? I'm wondering whether AF microadjustment is needed with this combo.
Asked by: Adam
I have had very good luck with the 2x III when paired with the 1Dx I or the 1Dx II. I have not had any micro adjustments.
Answered by: Gena F.
Date published: 2018-08-25

question

Why is this lens not an L lens? Is it lower quality, less robust or not weather resistent. I dont understand.
Asked by: Charles
Because of the DO (diffraction optics) Lena design.
Answered by: Jeremy P.
Date published: 2018-08-25

question

How does this compare to the 100-400 ii? Does it make any sense to own both of these lenses?
Asked by: Charles
I have the 400 DO, the 100-400 and the 70-200. The 400 DO is my go to lens for wildlife with the 1.4 or 2.0 extender. I use the 70-200 for most other shots
Answered by: Mike O.
Date published: 2018-08-25

question

Lens foot for cannon 400mm do
Asked by: Joe Bill
guess you are asking about tripod accessary?Wimberley WH-200 Gimbal Tripod Head II with Quick Release Base Gitzo GT3543LS Systematic Series 3 Carbon Fiber Tripod (Long)
Answered by: benjamin m.
Date published: 2018-08-25
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