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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 1-4 of 4
Overall 4
4.0

Cropping in Lightroom 5 so far is VASTLY superior to this

Jay Dee "James", Amazon
31 January 2015
  • Summary: So far I am not impressed. Just got this to use with a Canon 70D with a 70-200mm f2.8L and a 400mm f5.6L. works mechanically with the 2.8L "focuses" fast. 400mm f5.6L - will NOT focus in AF mode unless you tape the pins...Canon seriously makes something that wont work with equipment that's this expensive ?? on one Canon chart it will focus one another it won't...
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Overall 4
4.0

Not happy with mine at all

S. Floyd "molliefestus", Amazon
31 August 2014
  • Summary: I am so very disappointed in this product, I am sending it back. I've used it for less than a week, am a professional photographer, and have used this in a) good outdoor natural light b) with a weighted tripod and c) with a still subject and every single image is soft. Sharpness is gone. My lens that I attached this to is the Canon 300mm f/4L IS and I have the Canon 5d Mark II camera. I have used this with ISO 50 with f/stops of 5.6, 8, 11, 16 and 22.
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Overall 4
4.0

Not good enough.

RLS, Amazon
16 November 2013
  • Summary: I bought the Extender to match up with my Canon L series 70-200. I was disappointed with end results. I'm not giving up on the L series just saving my money for the perfect fit.
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Overall 4
4.0

Increased magnification at a cost

Ricky, B&H Photo
22 August 2013
  • Excerpt: I have now tried two of these Teleconverters with the same results. They both caused softening of the image or reduced quality. I bought my 500MM II with hopes of being able to use this product but sadly disappointed. I tested both under many controlled tests and all results were the same.
  • Pros: Easily Interchangeable
  • Cons: Poor image quality, Poor in Low Light
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