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Canon EF 400mm F2.8L IS III USM Canon EF Review
Canon EF 400mm F2.8L IS III USM

Main Features

  • 400mm Focal Range
  • F2.8 Max Aperture
  • Image Stabilization
  • Weather Sealed
  • Filter Thread: 52mm
  • Max Format: 35mm FF
  • Canon EF Mount
  • Weight: 2840g.
  • Diameter: 163mm
  • Length: 343mm
  • Min Focus Distance:2.5m
  • Max Magnification:0.17x
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Canon EF 400mm F2.8L IS III USM Overview
Canon EF 400mm F2.8L IS III USM is an Auto Focus (AF) Telephoto Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.

Lens Mount

Canon EF 400mm F2.8L IS III USM is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are Canon 1D X III, Canon 6D MII and Canon 5D MIV.

Sensor Coverage

Max sensor coverage of Canon EF 400mm F2.8L IS III USM is 35mm FF.

Focal Range

Canon EF 400mm F2.8L IS III USM has a fixed focal lenght of 400mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 400mm.

Optical Image Stabilization

Canon EF 400mm F2.8L IS III USM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.

Aperture

Canon EF 400mm F2.8L IS III USM has a max aperture of F2.8 and a minimum aperture of F32.
Pros and Cons of Canon EF 400mm F2.8L IS III USM

PROs
Image Stabilization
Weather Sealed
Built-in Autofocus
Hood supplied
Tripod Collar
Full-time Manual Focusing
Focus Distance Limiter
Covers Full-Frame Sensor

CONs
Heavy
Pricey
Canon EF 400mm F2.8L IS III USM Detailed Specifications

General
Brand Canon
Lens Type Prime
Lens Type Telephoto Prime
Lens Mount Canon EF
Max Format 35mm FF
Focal Range 400mm
Image Stabilization Yes
Colour Unknown
Zoom Method No Zoom
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 1.0X
APERTURE
Max Aperture F2.8
Min Aperture F32
Aperture Ring No
Diaphragm Blades 9
Optics
Optical Elements 17
Optical Groups 13
Special Elements Super UD + fluorite elements + Air Sphere + Super Spectra + fluorine coatings

FOCUSING
Min Focus Distance 2.5m
Max Magnification 0.17X
Autofocus Yes
AF Motor Type Ring-type ultrasonic
Full Time Manual Yes
Focus Method Rear
Focus Distance Limiter Yes
Distance Scale Yes
DoF Scale No
PHYSICAL SPECS
Weight 2840g
Diameter 163mm
Length 343mm
Materials Magnesium alloy
Weather Sealing Yes
Filter Thread 52mm
Filter Notes -
Hood Supplied Yes
Tripod Collar Yes
Canon EF 400mm F2.8L IS III USM Alternatives in Canon EF Mount
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Frequently Asked Questions about Canon EF 400mm F2.8L IS III USM
is the Canon EF 400mm F2.8L IS III USM a Weather Sealed lens?
What is the Minimum Focusing Distance of Canon EF 400mm F2.8L IS III USM
is the Canon EF 400mm F2.8L IS III USM an Autofocus (AF) lens?
What is the Filter Thread Size of Canon EF 400mm F2.8L IS III USM
Does Canon EF 400mm F2.8L IS III USM have Image Stabilization?
Does Canon EF 400mm F2.8L IS III USM have Aperture Ring?
What is the Maximum Magnification Ratio of Canon EF 400mm F2.8L IS III USM
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