Canon EF400mm f/2.8L IS III USM Lens

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EF-Mount Lens/Full-Frame Format
Aperture Range: f/2.8 to f/32
Super UD and Fluorite Elements
Super Spectra and Air Sphere Coatings
Ring-Type Ultrasonic Motor AF System
Customizable Electronic Focusing Ring
Optical Image Stabilizer
Weather-Sealed Design, Fluorine Coating
Detachable, Rotatable Tripod Collar
Rounded 9-Blade Diaphragm

Color:: White

Color:: The color of the item.

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Lens Filter Size:: Drop-In: 52 mm

Lens Filter Size:: The size of the filter that fits the lens.

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Maximum Aperture:: f/2.8

Maximum Aperture:: How wide a lens can be opened.

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Mount Type:: Canon EF

Mount Type:: This is the mount type for the lens to attach to the camera body.

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Overview

The Canon EF 400mm f/2.8L IS III USM Lens lets the camera capture crystal clear photos of distant objects. Ideal for sports and wildlife photography, the lens is compatible with Canon EF-mount cameras. You may use an optional EF-EOS R mount adapter to use the lens with RF-mount mirrorless cameras. The lens has 17 optical elements arranged in 13 groups that have super UD and fluorite elements placed among them to combat chromatic aberrations and color fringing. Both super spectra and air sphere coatings are applied to each optical element to improve light transmission by reducing flare and ghosting. The optical image stabilizer with 3 distinct IS modes allows you to take blur-free shots during a fixed setup, panning, and adjusting exposure. A ring-type Ultrasonic Motor AF system ensures fast and precise focusing performance. The customizable focus ring lets you set the sensitivity level for the manual focus. You can recall a previous focus point with the focus preset function. The rounded 9-blade diaphragm adds to the image quality by creating circular bokeh. You can use the lens inclement weather thanks to the dust- and moisture-resistant barrel. Optional EF 1.4× and EF 2× teleconverters can be fitted to the lens for increasing its focal length.

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Specifications

Brand
Canon

Detailed Specifications
Image Stabilization:	Yes
Image Stabilization: This is a family of techniques used to reduce blurring associated with the motion of a camera during exposure. Image stabilization helps in low light situations using slower shutter speeds. View All Attribute Definitions

Physical Specifications
Color:	White
Color: The color of the item. View All Attribute Definitions

Brand
Brand:	Canon

Camera Attributes
Autofocus:	Yes
Autofocus: All digital cameras come equipped with an Autofocus, or AF Mode. While in Autofocus the camera automatically focuses on subjects based on the AF Area Mode the user has selected. View All Attribute Definitions

Lens
Focal Length:	400mm
Focal Length: The distance between the film and the optical center of the lens when the lens is focused on infinity. View All Attribute Definitions

Lens Specification
Lens Min. Focus Distance:	8.20' (2.5m)
Lens Min. Focus Distance: The shortest distance that a lens can focus. View All Attribute Definitions
Lens Filter Size:	Drop-In: 52 mm
Lens Filter Size: The size of the filter that fits the lens. View All Attribute Definitions
Dimensions:	Approx. 6.42 x 13.50" (163 x 343mm)
Dimensions: Dimensions View All Attribute Definitions
Minimum Aperture:	f/32
Minimum Aperture: How wide a lens can be opened. View All Attribute Definitions
Lens Magnification Factor:	0.17x
Lens Magnification Factor: This is the magnifying factor of a lens. Macro lenses will often be described by their “magnification factor”. A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject. View All Attribute Definitions
Elements / Groups:	17 / 13
Elements / Groups: The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs. View All Attribute Definitions
Weight:	6.25 lb (2840g)
Weight: Weight View All Attribute Definitions
Angle of View (diagonal):	6° 10'
Angle of View (diagonal): Area of a scene that a lens covers or sees. Determined by the focal length of the lens View All Attribute Definitions
Maximum Aperture:	f/2.8
Maximum Aperture: How wide a lens can be opened. View All Attribute Definitions
Mount Type:	Canon EF
Mount Type: This is the mount type for the lens to attach to the camera body. View All Attribute Definitions