1-888-955-6000
crutchfield.com
Crutchfield

Canon EF 1.4x III Extender

Multiplies select telephoto lens's focal-length by 1.4X

Get a prepaid card with a select Canon lens prepaid card with a select Canon lens
Zoom
  • Canon EF 1.4x III Extender

    Front

  • Canon EF 1.4x III Extender

    Angled view

  • Canon EF 1.4x III Extender

    With lens cap

 

Our take on the Canon EF 1.4x III Extender

by Woody Sherman
Canon

Get some extra versatility from your telephoto L-Series lens with this precision-designed 1.4X extender. Your 300mm lens, for example, will gain 40% more reach, with a resulting focal length of 420mm (on full-frame cameras) or 672mm (on APS-C sensor cameras) once this extender has been placed in the light path. And it will only give up one stop of light sensitivity in the process. It's like getting two lenses out of your kit bag when this extender is standing at the ready.

A built-in microcomputer facilitates communication between lens, extender, and camera body, and provides fully integrated exposure and focus control on many Canon lenses. Not all lenses will be fully compatible though, so you should check your manuals and the Canon website to make sure of your lens's compatibility with this extender.

Fluorine coatings on the extender's optical elements will keep soils, smearing and fingerprints to a minimum. And it features rugged dustproof and water-resistant construction.

See Camera Lenses that work with this item See more info on this item

Highlights:

  • increases focal length by 1.4X on select Canon L-series telephoto lenses
    • example: a 300mm prime lens will have its reach extended to 420mm while only losing one stop of sensitivity
    • multiply your lens's focal length by 1.4 to see the resulting focal length when this lens is placed in-line on a full frame camera
    • then multiply that result by 1.6 to see your effective focal length on Canon APS-C cameras
  • rugged dustproof and water-resistant construction
  • on-board microcomputer regulates communication between camera, extender, and lens
  • 7 elements in 3 groups
  • only compatible with select L-Series lenses; not all automatic functions will be accessible on all lenses, consult manuals and Canon's website for compatibility info
  • 2-7/8" (diameter) x 1-5/8" (length)
  • 7.9 ounces
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Brand Compatibility
Loading...
Canon
Image Stabilization
Loading...
No
Focal Length
Loading...
1.4x extender
Maximum Aperture
Loading...
N/A
Weight
Loading...
7.9 ounces
Parts Warranty
Loading...
1 Year
Labor Warranty
Loading...
1 Year
Product Research
What's in the box?

Download owner's manual

  • Extender EF1.4x III lens adapter
  • Front body cover (installed)
  • Rear lens cap (installed)
  • Lens Case LP811
  • Quick Guide
  • Warranty Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Overview: The Canon Extender 1.4x III will extend the focal length of a lens by a factor or 1.4x. It has a standard Canon EF-mount, and is compatible with many L-series Canon EF lenses (see list below). It features 7 elements in 3 groups, and comes with a soft LP811 lens case.

Compatibility: The Extender 1.4x III is compatible with the following Canon lenses:

Compatible Lens Focal Length and Maximum Aperture with EF1.4x III
EF135mm f/2L USM 189mm f/2.8
EF180mm f/3.5L Macro USM 252mm f/4.5
EF200mm f/2.8L USM 280mm f/4
EF200mm f/2.8L II USM 280mm f/4
EF200mm f/1.8L USM 280mm f/2.5
EF200mm f/2L IS USM 280mm f/2.8
EF300mm f/4L USM 420mm f/5.6
EF300mm f/4L IS USM 420mm f/5.6
EF300mm f/2.8L USM 420mm f/4
EF300mm f/2.8L IS USM 420mm f/4
EF400mm f/5.6L USM 560mm f/8
EF400mm f/4 DO IS USM 560mm f/5.6
EF400mm f/2.8L USM 560mm f/4
EF400mm f/2.8L II USM 560mm f/4
EF400mm f/2.8L IS USM 560mm f/4
EF500mm f/4.5L USM 700mm f/6.7
EF500mm f/4.5L IS USM 700mm f/5.6
EF600mm f/4L USM 840mm f/5.6
EF600mm f/4L IS USM 840mm f/5.6
EF800mm f/5.6L IS USM 1120mm f/8
EF100-400mm f/4.5-5.6L IS USM 140-560mm f/6.7-8
EF70-200mm f/4L USM 98-280mm f/5.6
EF70-200mm f/4L IS USM 98-280mm f/5.6
EF70-200mm f/2.8L USM 98-280mm f/4
EF70-200mm f/2.8L IS USM 98-280mm f/4
EF70-200mm f/2.8L IS II USM 98-280mm f/4
EF300mm f/2.8L IS II USM 420mm f/4
EF400mm f/2.8L IS II USM 560mm f/4
EF500mm f/4L IS II USM 700mm f/5.6
EF600mm f/4L IS II USM 840mm f/5.6
EF1200mm f/5.6L USM 1680mm f/8
 
See Camera Lenses that work with this item
Review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Canon EF 1.4x III Extender Reviews

Average Customer Review:

2 people say:

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left
Filter by rating:
5 out of 5

CANON 1.4 EXTENDER

Written By JUNIOR, MURFREESBORO, TN. on Saturday, March 15, 2014
 
GOOD PRODUCT LESS EXPENSIVE THAN BUYING LONG LENSES
Pros:
ALL GOOD
Cons:
NONE
Was this review helpful?    Yes | No
 
5 out of 5

Canon 1.4x III

Written By larry, Westminster, CO on Monday, November 18, 2013
Crutchfield Customer Review (What's this?)
 
Great addition to any prime lens.
Pros:
Works great
Cons:
None
Was this review helpful?    Yes | No
 

For a more in-depth review and enhanced detailed information on the Canon EF 1.4x III Extender, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_280EF14X/Canon-EF-1-4x-III-Extender.html ).