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Canon Extender EF 1.4x III
9.4 out of 10

Canon Extender EF 1.4x III

Canon Extender EF 1.4x III The Canon Extender EF 1.4x III i Read more

Great Deal: $429.00

Reviews and Problems with Canon Extender EF 1.4x III

Showing 1-10 of 17
Overall 6
6.0

Good extender. Big caveat.

Johnny Questionable, B&H Photo
1 May 2015
  • Excerpt: This extender really stretches the reach of my 400m F5.6L lens with little noise and very good overall quality. But the lens won't autofocus with the extender. I suspect the incompatibility is with the Canon 60D body.
  • Pros: Clear Image Quality
  • Cons: Won't Autofocus With 60d
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Overall 6
6.0

Good Optics but the AF does not Work

SierraWalk, B&H Photo
21 January 2015
  • Excerpt: I have Canon 70D and a EF 100-400mm 1: 4.5-5.6 L lense. The optics was good when taking some pictures of birds and a sunrise from a distance. However, the AF did not work. I read all the literature and based on that I thought the AF would work.
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Overall 6
6.0

Limited lens compatibility!!!

Adam Starr "Adam Starr", Amazon
17 December 2014
  • Summary: I won't go into extensive detail on this item, but it's important for anyone considering buying this to know that the number of lenses for which this is compatible is very limited! Look into the list before you buy! None of my Rokinons are compatible and my Canon 24-105 isn't either.
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Overall 6
6.0

I might be too fussy

Lawrence M., Newegg
28 November 2014
  • Summary: If teleconverters were truly 1.4x extenders then Canon would surly go out of business because it would make no sense to buy longer focal lengths. Although I am no photo novice I had expected better quality photos and thus I can only offer this advice to you: If you are intending to have small prints...
  • Pros: Well constructed and extends your zoom by 1.4x. I paired this extender with a Canon 300mm f4 & Canon 6D and loved the reach (effective 420mm). I was able to capture some candid moments which would not have been possible with my 300mm
  • Cons: The photos I took looked great on the camera LCD and my 12in Surface pro 3 (2160 x 1440) but when seen on my 27" Samsung SB970 (2560 x1440) where I often display my photos at work I immediately noticed how terrible these photos were by comparison to my 300mm f4 without the teleconverter. The tele...
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Overall 6
6.0

Investment in future

Mumtaz A. Shamsee "Tazer", Amazon
5 February 2014
  • Summary: Right now it causes me to lose autofocus and that is a no-no for wildlife photography. I got it for one rare day when I spot the Yeti far away and I don't have enough reach. Who would believe my Yeti photos if they were crop-zoomed and noisy?
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Overall 6
6.0

Great for stills, not so great for tracking birds

Steve Russell, Amazon
23 January 2014
  • Summary: On my first outing to try out the 2X III (on my 70-200 2.8 lens), it worked great when focusing on relatively still birds (flamingos) but not so great when trying to track flying birds.
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Overall 6
6.0

Not ideal for me

Lynn, B&H Photo
2 January 2014
  • Excerpt: Turns out this does not support auto focusing on 7D and 100-400 lens. Not useful for wild life photography.
  • Pros: Durable
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Overall 6
6.0

Only M Focus with 1.4 Extender on Canon 6d/EF100-400 combo

JAW, Amazon
14 November 2013
  • Summary: I purchased the Telephoto converter for my EF 100 - 400 zoom lens which I use on a Canon 6D. Turns out Autofocus does NOT work which makes the converter practically useless to me. Once I add the converter to camera, focus mode shifts to M Focus. Reviews I read did not suggest this to be an issue.
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Overall 6
6.0

Little if any improvement

Beau, B&H Photo
7 May 2013
  • Excerpt: I bought the 1.4 Extender III because I was so impressed with the 2x Extender III's vast improvement over the 2x Extender II. But I found little if any difference between the 1.4s. I am using it with version II lenses and a 1DX, so it isn't a matter of features support.
  • Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus
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Overall 6
6.0

Autofocus Compatibility Issues

Jeff, B&H Photo
3 February 2013
  • Excerpt: I have had this extender for about a month. As previously stated, autofocus DOES NOT work with this extender and Canon's EF 100-400L telephoto lens (I have a Canon 60D camera). I can only speculate that the design of the 100-400L is too old to have the autofocus be compatible with the new EF 1.4X...
  • Pros: Lightweight, Rugged, Strong Construction
  • Cons: Compatibility Issues
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