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Canon Extender EF 1.4x III (Tele Extender) - U.S.A. - Special Promotional Bundle

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Canon 1.4x: Picture 1 regular

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

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
Mfr #
4409B002 KZ
SKU
CA14XAF3UZ

Canon 1.4x Reviews Powered by TurnTo®

Review Snapshot®

 
4.7

(based on 32 reviews)

62%

of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars

     

    (22)

  • 4 Stars

     

    (9)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 32 customers

 
5.0

Canon Extender EF 1.4x III Tele Extender, USA by Canon

By

Excellent - used with 100-400 and 200-400 Canon lenses. Sharp as a tack with the lenses and autofocus works well

 
5.0

Better than I thought

By

I didn't have a lot of high hope but I wanted a tad more reach at times with a 300mm f2.8. Not only does this do the job , image quality does very well. Over all I am very happy.

 
5.0

Great Option!

By

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

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

 
4.0

good but overpriced

By

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

excellent combination with the 300 f2.8L

 
5.0

Perfect for my BIF images

By

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

 
4.0

Worth the price

By

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

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

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

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  I have a EF 100-400mm zoom lens. Will this extender work with my lens/automatic?
GREGORY L  I also own the 100-400 and enjoy using the wide range of focal lengths in its relatively light and compact package. The downside is that it is a relatively slow lens: f5.6 at 400mm. That is, of course the trade off, fast glass is also b-i-g and heavy (and expensive). The relative slowness of the 100-400 is very pertinent to your question. The 1.4 extender III(which I also own) reduces the speed of a lens by 1 f stop. So the at the maximum focal length, the 400mm f5.6 becomes a 560mm f8.0. This reduction in f stop (light gathering capacity) has two negative consequences: 1. The ability of the lens to stop the action of the subject and reduce motion blur of the camera is reduced by half at any given iso AND 2. (probably more significantly) most canon camera bodies will not auto-focus an f 8.0 lens. The 1D Mark IV will; but even the newly released 1D X would not until a recent firmware update. I believe those are the only bodies that will auto-focus a 100-400 with a 1.4 tele-extender. I know the none of the rebels and even the 7d will not. I don’t know about the 1D S. (All the camera bodies will still auto-expose correctly.) Bummer! It seems that nothing in photography is simple or inexpensive. But this is not just some marketing ploy. Try manually focusing an f8.0 lens. It's really tough to detect image sharpness when the image is so dark. It's difficult for the camera body too. Gregory LightOtter
Shopper  I have a EF 100-400mm zoom lens. Will this extender work with my lens/automatic?
GREGORY L  I also own the 100-400 and enjoy using the wide range of focal lengths in its relatively light and compact package. The downside is that it is a relatively slow lens: f5.6 at 400mm. That is, of course the trade off, fast glass is also b-i-g and heavy (and expensive). The relative slowness of the 100-400 is very pertinent to your question. The 1.4 extender III(which I also own) reduces the speed of a lens by 1 f stop. So the at the maximum focal length, the 400mm f5.6 becomes a 560mm f8.0. This reduction in f stop (light gathering capacity) has two negative consequences: 1. The ability of the lens to stop the action of the subject and reduce motion blur of the camera is reduced by half at any given iso AND 2. (probably more significantly) most canon camera bodies will not auto-focus an f 8.0 lens. The 1D Mark IV will; but even the newly released 1D X would not until a recent firmware update. I believe those are the only bodies that will auto-focus a 100-400 with a 1.4 tele-extender. I know the none of the rebels and even the 7d will not. I don’t know about the 1D S. (All the camera bodies will still auto-expose correctly.) Bummer! It seems that nothing in photography is simple or inexpensive. But this is not just some marketing ploy. Try manually focusing an f8.0 lens. It's really tough to detect image sharpness when the image is so dark. It's difficult for the camera body too. Gregory LightOtter
Shopper  I have a EF 100-400mm zoom lens. Will this extender work with my lens/automatic?
GREGORY L  I also own the 100-400 and enjoy using the wide range of focal lengths in its relatively light and compact package. The downside is that it is a relatively slow lens: f5.6 at 400mm. That is, of course the trade off, fast glass is also b-i-g and heavy (and expensive). The relative slowness of the 100-400 is very pertinent to your question. The 1.4 extender III(which I also own) reduces the speed of a lens by 1 f stop. So the at the maximum focal length, the 400mm f5.6 becomes a 560mm f8.0. This reduction in f stop (light gathering capacity) has two negative consequences: 1. The ability of the lens to stop the action of the subject and reduce motion blur of the camera is reduced by half at any given iso AND 2. (probably more significantly) most canon camera bodies will not auto-focus an f 8.0 lens. The 1D Mark IV will; but even the newly released 1D X would not until a recent firmware update. I believe those are the only bodies that will auto-focus a 100-400 with a 1.4 tele-extender. I know the none of the rebels and even the 7d will not. I don’t know about the 1D S. (All the camera bodies will still auto-expose correctly.) Bummer! It seems that nothing in photography is simple or inexpensive. But this is not just some marketing ploy. Try manually focusing an f8.0 lens. It's really tough to detect image sharpness when the image is so dark. It's difficult for the camera body too. Gregory LightOtter
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