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Canon-extender-ef-1-4x-iii.29016086
9.5 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: $269.00

Reviews and Problems with Canon Extender EF 1.4x III

Showing 1-10 of 12
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? But sincerely this is a tool for rare occasion when your subject is stationary enough and gives you a chance to reach in your pocket and remove your lens and put the extender on and then put it back on tri-pod and then manually zoom...
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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. It was slow to focus in AL Servo mode and created softer images compared to the exact same type of shooting using the 1.4 extender. All my keeper shots of flying birds were with the 1.4, but many of my still shots from a distance were tack sharp.
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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. It works very well, just like my version II 1.4. The three star rating is based on value.
  • 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 III. Manual focus works fine.
  • Pros: Lightweight, Rugged, Strong Construction
  • Cons: Compatibility Issues
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Overall 6
6.0

The Jury is Still Out

RKJ "Skeptic", Amazon
30 January 2013
  • Summary: This product performs exactly as advertised. I'm using with my 70-200 f/2.8 for wildlife and horse shots. Great in bright light, but as you might expect leaves a lot to be desired in moderate, low lighting situations. For the price, I'm happy with the purchase.
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Overall 6
6.0

Not What I Needed

PhotoGuy, B&H Photo
26 January 2013
  • Excerpt: I wanted to extend the range of my Canon 100-400mm lens. The extender did that well. However, on this lens the extender disables the autofocus making it very difficult to focus on moving objects. Even when photographing still objects, it is difficult. In addition, the extender reduces the clarity of the photographs. I could get a few decent pictures, but tack sharp never happened.
  • Pros: Easily Interchangeable, Nice Bokeh, Strong Construction
  • Cons: Blurry Focus, Poor in Low Light
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Overall 6
6.0

AF does not work w/7D and 100-400 combo

Parker, B&H Photo
18 January 2013
  • Excerpt: I bought this for my 7d and 100-400 L lens but AF does not work with combo.
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Overall 6
6.0

Okay but needed more

Gator, Adorama
12 December 2011
  • Excerpt: 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.
  • Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Strong Construction
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