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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: $449.00

Reviews and Problems with Canon Extender EF 1.4x III

Showing 1-10 of 103
Overall 8
8.0

Almost always on my 500 f4

Andy, B&H Photo
2 weeks ago
  • Excerpt: I use the 1.4 x on the 500 lens (7Dll body) for bird photography. It does what it is supposed to do. Autofocus is fast and accurate and Images are high quality. Definitely recommend for anyone who wants a little more reach with their L telephoto lens. Note that you will lose 1 stop of light with this or any 1.4 converter.
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Overall 8
8.0

First time Extender User

DSW, B&H Photo
11 January 2015
  • Excerpt: Images sharp Like the added reach for birding. Great for ducks and shorebirds that are not moving quickly. Need to upgrade your Canon Firmware on camera in order to use automatic focus with extender at f8 and slower. Haven't tried this yet.
  • Pros: Durable, Easily Interchangeable, Rugged, Strong Construction
  • Cons: Extends While Walking
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Overall 8
8.0

First time Extender User

DSW, B&H Photo
11 January 2015
  • Excerpt: Images sharp Like the added reach for birding. Great for ducks and shorebirds that are not moving quickly. Need to upgrade your Canon Firmware on camera in order to use automatic focus with extender at f8 and slower. Haven't tried this yet.
  • Pros: Durable, Easily Interchangeable, Rugged, Strong Construction
  • Cons: Extends While Walking
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Overall 8
8.0

Great accessory

Joe, B&H Photo
9 January 2015
  • Excerpt: It really works well with my Canon 100-400 mm l lens. The carrying pouch makes it easier to keep it clean. For the investment, it makes up for the price of a very expensive lens longer than the 400 mm end of the lens.
  • Pros: Consistent Output, Durable, Fast / accurate auto-focus, Lightweight
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Overall 8
8.0

Great accessory

Joe, B&H Photo
9 January 2015
  • Excerpt: It really works well with my Canon 100-400 mm l lens. The carrying pouch makes it easier to keep it clean. For the investment, it makes up for the price of a very expensive lens longer than the 400 mm end of the lens.
  • Pros: Consistent Output, Durable, Fast / accurate auto-focus, Lightweight
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Overall 8
8.0

Good but expensive

Flying Fish, B&H Photo
26 December 2014
  • Excerpt: I use this 1.4 X TC III to gain extra reach with my Canon 100-400 f/4.5-5.6L IS II lens. It turns the lens into a 140-560 mm f/6.3 (approx) - f/8 lens. I lose a little sharpness and contrast with the TC but it's still pretty decent. The autofocus also slows a little but not much. It also adds a bit of weight. It probably is the best TC available for this lens. and also the most expensive!
  • Pros: Easily Interchangeable, Esp Good With V Ii Teles, Rugged, Strong Construction
  • Cons: Expensive, Heavy, No Good With Ef-s Lenses
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Overall 8
8.0

Great product, but a little expensive

Bigdad, B&H Photo
2 December 2014
Overall 8
8.0

Better than version II

ChrisL, B&H Photo
24 November 2014
  • Excerpt: I purchased the Extender EF 1.4X III to replaced version II. The sharpness is overall improved with excellent contrast and color. The only draw back is the steep price. I own two of these now so I don't have to keep swapping between the 70-200mm IS f/2.8L II and the 300mm f/2.8L II when I'm on assignment. I would have giving this product 5 stars if it is $ cheaper.
  • Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Rugged, Strong Construction
  • Cons: Price
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Overall 8
8.0

It does a great job for moving targets that don't change speed quickly ...

Lenny Rogers, Amazon
13 October 2014
  • Summary: Gives me the reach that I was expecting from my 70-200 but I have to consider what I am filming as you loose a few stops of aperture and the focus is "sluggish". It does a great job for moving targets that don't change speed quickly and have a predictable trajectory. I've used this to film lacrosse games and it's a lot of work getting the shot because of the slower auto focus.
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Overall 8
8.0

Got Want I Wanted

Joey, B&H Photo
19 June 2014
  • Excerpt: Not used that much yet but I'm satisfied so far. Connected to my 70-200mm and auto focus works well.
  • Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight
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