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About Canon 1.4x

Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses.

It features a built-in microcomputer for seamless communication among camera body, lens and extender; features careful lens placement and coatings to minimize ghosting and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum.

An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.



Note:
This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. Additionally, please see the lens and/or camera body manual for full compatibility information with the Extender EF 2X III.

Lens Compatibility Chart
EF 135mm f/2L USM - AF Possible -
EF 180mm f/3.5L Macro USM - AF Possible - The autofocusing range is from 2.6 feet/0.8m to infinity.
EF 200mm f/2.8L II USM - AF Possible -
EF 200mm f/2L IS USM - AF Possible -
EF 300mm f/2.8L IS USM - AF Possible -
EF 300mm f/4L IS USM - AF Possible -
EF 400mm f/2.8L IS USM - AF Possible -
EF 400mm f/4 DO IS USM - AF Possible -
EF 400mm f/5.6L USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only
EF 500mm f/4L IS USM - AF Possible -
EF 600mm f/4L IS USM - AF Possible -
EF 800mm f/5.6L IS USM - AF Not Possible - With the EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS-1v, EOS 1v HS and EOS-3, AF is possible with the center focusing point only
EF 1200mm f/5.6L USM - AF Not Possible -
EF 70-200mm f/2.8L IS USM - AF Possible - If the lens is attached to an EOS camera, having multiple focusing points and an Extender is attached to the lens, only the center focusing point will be useable for AF.
EF 70-200mm f/2.8L USM - AF Possible -
EF 70-200mm f/4L IS USM / USM - AF Possible -
EF 100-400mm f/4.5-5.6L IS USM - AF Not Possible - With the EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1D Mark III, EOS-1D Mark II, EOS-1Ds, EOS-1D, EOS-1v and EOS-3, AF is possible with the center focusing point only. The Image Stabilizer does not operate with the following cameras: EOS650, 630, 620, 600, RT, 700, 750, 850, EOS-1, A2, A2E, 10s, ELAN, Rebel, Rebel S, Rebel II and RebelSII.


The Canon 1.4x is commonly used for Landscape/scenery, Sports/action, Weddings, Wildlife photos and more.The Canon 1.4x is most used by customers who consider themselves to be a Photo enthusiast, Pro photographer, Semi-pro photographer among others.The Canon 1.4x is popular because customers like the following qualities of the Canon 1.4x: Consistent output, Durable, Easily interchangeable, Fast / accurate auto-focus, Lightweight, Nice bokeh, Rugged and Strong construction

Summary of Customer Reviews

Customers most agreed on the following attributes:
Pros:
Fast / accurate auto-focus (22),Strong construction (20),Easily interchangeable (18),Consistent output (17),Durable (17),Rugged (16),Lightweight (14),Nice bokeh (4)
Best Uses:
Wildlife photos (24),Sports/action (20),Landscape/scenery (12),Weddings (4),Macro photography (3)
Reviewer Profile:
Photo enthusiast (13),Semi-pro photographer (10),Pro photographer (5)

Canon 1.4x Specifications

Lens Construction
7 elements in 3 groups
Max. Diameter x Length, Weight
2.8 x 1.1 in, 7.9 oz. / 72.0 x 27.2mm, 225g
Compatibility
For EF 70 200mm f/2.8L, EF 70 200mm f/2.8L IS, EF 70 200mm f/2.8L IS II USM, EF 70 200mm f/4L, EF 70 200mm f/4L IS, EF 100 400mm f/4.5 5.6 IS II USM*, EF 100 400mm f/4.5 5.6L IS*, EF 135mm f/2L, EF 180mm f/3.5L Macro, EF 200mm f/2.8L II, EF 300mm f/2.8L IS, EF 300mm f/4L IS, EF 400mm f/2.8L IS, EF 400mm f/4 DO IS II USM, EF 400mm f/4 DO IS, EF 400mm f/5.6L*, EF 500mm f/4L IS, EF 500mm f/4L IS II USM, EF 600mm f/4L IS, EF 600mm f/4L IS II USM, EF 800mmf/5.6L IS

*Autofocus may be disabled

Canon 1.4x Reviews

Review Snapshot®

 
4.6

(based on 30 reviews)

95%

of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars

     

    (20)

  • 4 Stars

     

    (9)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Most Liked Positive Review

 

Highly recommended

This is a significant upgrade to the previous version II. Highly recommended, especially with the new f2.8 300 and 400 lens from Canon Worth the money.

VS

Most Liked Negative Review

 

Okay but needed more

Had wanted the 2X Teleconverter, but it would not available at the time, and let someone talk me into the 1.4 X. Just doesn't do what I needed it to do.

Reviewed by 30 customers

 
5.0

Great Option!

By

from Maryland  -  Photo Enthusiast

Since moving up to a full frame camera from a cropped sensor, I miss the extra reach that the cropped frame gives to the lenses. This tele extender almost gets it all back - (1.6 vs 1.4) without a sacrifice to clarity and with only one f stop difference.

 
5.0

Noticeably faster than my ef 1.4x ii

By

from Stafford, VA  -  Semi-pro Photographer

The 1.4x II version is a very good one, but this one makes for noticeably faster autofocus.

 
4.0

good but overpriced

By

from Plantation, FL  -  Photo Enthusiast

I use this with my 100-400 IS II lens and my 400 F4 DO lens. works well and is reasonably sharp, especially with the F4 lens. They charge too much for this product. It is way overpriced.

 
5.0

fine performance

By

from Chapel Hill  -  Pro Photographer

excellent combination with the 300 f2.8L

 
5.0

Perfect for my BIF images

By

from Twin Cities, MN  -  Semi-pro Photographer

Very happy with the extender. Use it on my 300 L f4 with my 7D.

 
4.0

Worth the price

By

from NY, NY  -  Photo Enthusiast

When I upgraded to a full frame sensor I missed the additional magnification. I had played with a 2.0 II extender, but found the IQ loss just too much. This pairs very well with a 5DMKIII and a 20-200 f2.8 LII IS lens. Obviously, not as tack sharp as the lens on its own, but a great compliment to get the extra 80mm of tele.

 
4.0

Pretty darn good

By

from Berkeley, CA  -  Pro Photographer

I hated my old 2x extender but still needed more reach on my 70-200 and couldn't afford the 300mm 2.8 lens yet. I read some other reviews and this 1.4 seemed pretty popular. Turns out, it's pretty darn good. The improvement over the 2x is stunning. The slow focus and softness are reduced to usable levels. I use this mostly for college football games and can still get good focus with fast action and the softness, which is noticeable still, is acceptable in the world of fast action. I would hesitate to use this for still life or portraits though.

 
4.0

works well with Canon EF 300mm f/L4

By

from East Texas  -  Semi-pro Photographer

added to my Canon EF 300mm gives the additional magnification I was looking for in photographing wild life...loss of speed (reduced to 5.4) has not been a problem except in the early morning and late evening...compensated by adjustment in ISO...would recommend for wildlife shooting

 
5.0

Nice Teleconverter ... nice improvement

By

from Detroit, MI  -  Semi-pro Photographer

I upgraded my from a Tamron 1.4x. The Tamron worked well on my APS-C cameras but when I went full frame there was quite a bit of vignetting. This 1.4x iii work like a champ with my 400 5.6 and 5D3. I'm sure it will be stuck to the 400 5.6 whenever I'm birding or need the additional reach provided the light is good enough or I have my tripod. Optics seem first rate. The release mechanism is also superior and it would be quite a feat to accidently release the lens from the TC.

 
4.0

1.4x III

By

from Rhode Island  -  Photo Enthusiast

I love this extender for shooting the surf. The only downside I see is the slower autofocus on my 7D

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
SCOTT M  Superior optics to the version II extender. Even though you lose a little IQ, you have to crop less, making noise less apparent.
JEAN RAYMOND B  Will the AF & image stabilizer functions of the zoom EF 100-400mm f/4.5-5.6 L IS USM work well when mounted on a EOS 70D body with this 1.4 extender?
JENNY W  yes it will
JAMES M  is there a Tele Extender for the canon 60D?
NEAL D  This item works with all ef bodies but not all lenses.
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