Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender

Model #5176B002

Canon Warranty - USA Version
Canon 5176b002 1
Canon 5176b002 1
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Weight 7.98 lb (3.62 kg)
Dimensions (dxl) Approx. 5.04 x 14.41" (128.02 x 366.01 mm)
Filter thread Rear: 52 mm Bayonet II


Camera mount type Canon EF
Minimum focus distance 6.56' (2.00 m)
Diaphragm blades 9
Focal length 200 - 400 mm
Format compatibility 35mm Film / Full-Frame Digital Sensor
Canon (APS-C)
Groups/elements 20/25
Magnification 0.15x
Aperture Maximum: f/4
Minimum: f/32
Angle of view 12° - 6° 10'


Image stabilization Yes
Tripod collar Yes Fixed - rotating
Autofocus Yes
Expert Reviews
Dp review.32823956
25 June 2013

The examples below give some idea of the lens's zoom range, shot from the same position on the EOS-1D X at 200mm, 400mm, and 560mm (i.e. with 1.4x extender engaged):

The digital picture.34755376
21 June 2013

Causing great excitement among Canon photographers was the February 7, 2011 development announcement of the Canon EF 200-400mm f/4L IS USM Ext 1.4x Lens. I was personally excited – a Canon EF 200-400mm f/4L IS USM Lens had long been on my most-wanted Canon lens list.

20 August 2013

A great sensation for the optical world, this super telephoto full-frame stabilised zoom lens opens a new era for professional optics. The Canon EF 200-400mm F4L IS USM Extender 1.4x has a built-in teleconverter, that allows the photographer to switch to extended focal lengths in just a second.

22 October 2013

Canon's EF 200-400mm f/4L IS USM Extender 1.4X more than satisfies the requirements of its target market. Sports and wildlife photographers should be delighted by the convenience of the built-in extender and the fact that it doesn't compromise image quality.

User Reviews
B h photo.32817553
23 April 2016

My photography has changes since I bought this lens. I now shoot more sports and wildlife. The lens is very good for everything that has action.For football I can go sit in the end zone and cover the entire field from the far end zone to 10 yards out.

21 October 2013

Best lens I've ever used for aviation photography. All of the versatility needed to capture images in any setting, and the built-in converter loses almost nothing I can detect in terms of image quality or focusing speed.

  • +

    Fast auto-focus, Superior build quality, Super-sharp images, very verstaile telephoto range, built-in teleconverter

  • -

    on the heavy side

B h photo.32817553
5 October 2016

The optics are tremendous and when paired with the new 1dx the images are stunning. I have shot mostly wildlife and some sports. You can hand hold a few shots with high shutter speeds but this is meant to be used w/ a monopod or tripod.

B h photo.32817553
1 March 2016

This Lens is my primary wild life lens, after a lot of deliberation between the 400 f2.8 and 200-400 f 4 I decided on the 200-400 for its versatility. I have the ability to zoom and switch to built in 1.4 without having to remove the lens.

B h photo.32817553
22 February 2016

Brilliant lens !! I am an aviation photographer and just got back from a shoot in California with the U.S. Navy.Used it with and without extender without change in results. Is it a little heavy? Yes but I had no problem hand holding it for most of the day in windy conditions.

B h photo.32817553
9 November 2014

As a sports shooter, I carry this lens everywhere. It covers from 200mm-560mm( within extender). When I move by plane, I can bring the equipment easily in a jet.This lens is the strongest partner for sports shooter, wildlife and news. You don't loose the chance with it.

B h photo.32817553
30 October 2014

I get my chops broken by other parents when I show up with this lens on my 1DX or 1DC at my sons football games but when the parents and coaches see the end result with the shots that I get they soon realize what it takes to make those NFL quality images look awesome!

B h photo.32817553
1 April 2014

This lens is amazing, delivery quality image as any prime lens, plus the feature that let you work in composition. This lens (200-400 f4) do the job of 200mm,300mm and 400mm primes 2.8mm. The only difference is the aperture (a little more than 1.2mm less of those three).

B h photo.32817553
29 March 2014

Took it out immediately and shot with internal and external Extender(784mm-f13-1/1250-ISO1000-5DMkiii), I figured this should stretch the test. If I wasn't pleased it was going back! I kept it and am thrilled with the performance. The sharpness blew me away!

Product Highlights
  • High-Performance Telephoto Zoom Lens
  • Canon EF Mount
  • Aperture Range f/4-32
  • Built-in 1.4x Extender
  • Three-Mode Optical Image Stabilization
  • Ring USM Autofocus & Internal Focusing System
  • Power Focus Mode for Smooth Focus Shift
  • One Fluorite and Four UD Lens Elements
  • Fluorine Front & Rear Lens Coating
  • Highly Resistant to Dust and Water
Average Expert Score
Average User Score
In The Box
  • Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender
  • E-145C Lens Cap for EF 300mm f/2.8L IS II USM
  • Lens Dust Cap E (Rear)
  • Lens Wide Strap B f/EF 300 / 400 mm f/2.8L IS II USM
  • ET-120 Lens Hood
  • Lens Case 200-400 for Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender
  • 52mm Drop-in Gelatin Filter Holder (Black)
  • Tripod Mount
  • Strap for Hard Case
  • Limited 1-year Warranty
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