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EF 400mm f/5.6L USM
Super Telephoto
Canon Store: $

Compare lenses from the abundant Canon lineup of EF Lenses and see the difference each one can make.
Overview
This high-performance lens was designed with portability and handling ease in mind. One Super UD-glass element, whose characteristics are similar to fluorite, and one UD-glass element result in sharp pictures from corner-to-corner. The lens also has a built-in hood and a detachable tripod mount.







Specifications
Focal Length & Maximum Aperture
Lens Construction
Diagonal Angle of View
Focus Adjustment
Closest Focusing Distance
Filter Size
Max. Diameter x Length, Weight
Compatible Supplies & Accessories
Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 400mm f/5.6L USM that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store

77mm Circular Polarizer PL-C
MSRP: 250.0

77mm Close-Up Lens 500D
Canon Close-Up Lens 500D is a double-element accessory that attaches to front of lens. It changes closest focusing distance from infinity to 500mm (approx. 19.7" from front of lens).
MSRP: 220.0

77mm Protect Filter
These filters can help protect your lens against dust, moisture, fingerprints, scratches and damage and can be kept on your lens at all times. Filter fits select lenses with a 77mm diameter.
MSRP: 95.0

77mm UV Haze Filter
UV Protector filters allow you to correct for the UV effect to varying degrees. These filters can also help protect your lens against dust, moisture, fingerprints, scratches and damage and can be kept on your lens at all times. Filter fits select lenses with a 77mm diameter, please see Compatibility tab for compatible lenses.
MSRP: 55.0

EF 1.4X Extender
MSRP: 429.99

EF 1.4X Extender
MSRP: 429.99

EF 2XII Extender
MSRP: 429.99

EF 2XII Extender
MSRP: 429.99

Extender EF 1.4x III
Extends focal length by a factor of 1.4x Built-in microcomputer for seamless communication with camera body, lens and extender Newly-developed Fluorine coating keeps soiling, smears and fingerprints to a minimum
MSRP: 429.99

Extender EF 2x III
Extends focal length by a factor of 2x Built-in microcomputer for seamless communication with camera body, lens and extender Newly-developed Fluorine coating keeps soiling, smears and fingerprints to a minimum
MSRP: 429.99

Extension Tube EF 12 II
Extension Tube EF 12 II is especially suited for close-focusing with wide-angle lenses.
MSRP: 130.0

Extension Tube EF 25 II
25mm fully coupled Extension Tube for EOS camera and most lenses to 350mm.
MSRP: 210.0

Gelatin Filter Holder Adapter III 77
The Gelatin Filter Holder Adapter III allows the use of commercially available square filters without the need for cutting. The holder attaches to the lens through an adapter that fits the filter diameter. Use with 3-inch square type III gelatin filters. Gelatin filters can be used with most EF lenses.
MSRP: 60.0

Gelatin Filter Holder Adapter IV 77
The 77mm Gelatin Filter Holder Adapter IV 77 is used to attach the Gelatin Filter Holder IV to most EF lenses.
MSRP: 60.0

Gelatin Filter Holder Hood III
Canon Gelatin Filter Holder III allows 3-inch square gelatin filters to be fitted to most EF lenses.
MSRP: 45.0

Gelatin Filter Holder Hood IV
Allows 4-inch square gelatin filters to be fitted to most EF lenses. Requires Gelatin Filter Holder Adapter. Can be combined with optional Gelatin Filter Holder Hoods IV.
MSRP: 45.0

Gelatin Filter Holder III
Allows 3-inch square gelatin filters to be fitted to most EF lenses. Requires Gelatin Filter Holder Adapter. Can be combined with optional Gelatin Filter Holder Hoods III.
MSRP: 140.0

Gelatin Filter Holder IV
MSRP: 150.0

Lens Cap E-77 II
The Lens Cap E-77 II is newly designed and fits Canon EF lenses with a 77mm filter size. It helps protect the front glass from dust and scratches.
MSRP: 15.0

Lens Cap E-77U
Indispensable for protecting your valuable lenses, this cap should be used on all lenses with a 77mm filter size.
MSRP: 12.0

Lens Dust Cap E Rear Cap
Rear lens cap for all EF type lenses, lens extenders, and extension tubes. Used to protect the rear glass element from dust and scratches.
MSRP: 7.0

Lens: CarePAK PLUS (2YR)
CarePAK PLUS offers protection from accidental damage such as drops, spills, power surges, and more, including normal wear and tear, beyond the standard warranty period. It also includes Image Recovery (included with Cameras, Camcorders, and Printers with a memory card slot only), priority repair service, free return shipping, $0 deductible, genuine Canon factory service with only genuine Canon parts, and is transferable if you sell or gift your product. With a CarePAK PLUS, a damaged product will be repaired to good working condition or replaced with an equivalent product.

Lens: CarePAK PLUS (3YR)
CarePAK PLUS offers protection from accidental damage such as drops, spills, power surges, and more, including normal wear and tear, beyond the standard warranty period. It also includes Image Recovery (included with Cameras, Camcorders, and Printers with a memory card slot only), priority repair service, free return shipping, $0 deductible, genuine Canon factory service with only genuine Canon parts, and is transferable if you sell or gift your product. With a CarePAK PLUS, a damaged product will be repaired to good working condition or replaced with an equivalent product.

Rain Cover ERC-E5S
Protects camera and lens when shooting during inclement weather conditions.
MSRP: 149.0

Raincover Small
Keeps your professional camera clean and dry when shooting in a wet environment. Compatible with Canon EOS Cameras. Contains attachable eyecups (L,S) for compatibility with all EOS Digital cameras. Transparent window enables clear visibility of the top and rear LCD panels and LC monitor. Front fastener enables easy attachment and removal of all lenses.
MSRP: 125.0
Brochures
Resources
MTF Charts
A Modulation Transfer Function (MTF) chart measures a lens’ expected optical performance at the center of the picture area and measures repeatedly along the diagonal line, further and further toward the corners of the image. The higher a curve is shown on the chart, the better the lens is performing in the area the chart is measuring. As a curve moves from left to right, it displays the lens' results from center towards the corners.
For more information on understanding how to read Canon Lens MTF charts, please click here.
Videos
Canon EF 101: A Beginner's Guide
Canon offers a wide range of EF lenses and lens accessories. In this 9 part video series you'll learn all about lens basics and the various lenses available from your host, Canon expert Jon Lorentz.Canon EF 101: Lens Basics
Take a quick and informative first step into the world of lenses with Canon expert Jon Lorentz, providing insight into the type of lenses available, helpful tips and more.Canon EF 101: Telephoto Lenses
Telephoto lenses let you get close in on a subject. Canon expert Jon Lorentz shows you how to get the most out of your Canon telephoto lenses.Canon EF 101: Lens Accessories
Canon expert Jon Lorentz takes a look at some lens accessories including lens hoods, filters, extenders and more and how to care for them.† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.