UPC
013803122145
$429.99

Key Features

  • EF Mount Teleconverter
  • 1.4x Magnification Factor
  • Microcomputer Controlled
  • Communication Between Lens & Camera
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You're reviewing:Canon EF 1.4x III , Extender III
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Top customer reviews

  1. I get very sharp images!
    Quality

    I resisted buying one because of not so hot reviews. Then I learned that pros use them and attribute problems to user error. So, I bought one. I use it mainly for shooting birds with a 5D IV and 100-400 IS II. I have also used it with a 77D. Bear in mind the longer focal length will require a steadier hold and/or higher shutter speed. Autofocus can struggle in low contrast situations. My results improved when I practiced steady holds. The photo below was shot at f/11 & 1/500 handheld. It's also been cropped at least 80%.
  2. Perfect Compliment to 135L
    Quality

    I am using this 2X extender with my 135L, and I must say that after a little micro adjustment of +5, this is incredible! I now have a 270mm f/4 lens, and the images are very, very nice. Wide open (f/4), there is a little softness or dreamy effect, but stopped down to f/5.6, images are extremely sharp and contrasty. Yes, this will enhance any flaw in your lens, but with higher quality lenses, should not be much of an issue. AF is fast, I have not had any problems with its speed or accuracy. Overall, I am extremely pleased with this extender.
  3. wrong tool
    Quality

    Auto focus will not work with Canon 70D and Canon100-400 f.4-f.56 - f stop loss is too much for it to handle. Would have been nice to know requirements before purchase. I have returned for refund.
  4. Great Product
    Quality

    I use the 70-200 F2.8 ISII which is a versatile lens. This gives me another level of versatility and coupled with the 5DMKIII, I still have plenty of light. This is a great option until I can decide on whether the EF 200-400mm f/4L IS USM with the built-in Extender or the 500mm will be my next lens.
  5. Outstanding addition
    Quality

    Works great on my 500 f4 ii lens. Minor IQ loss, well worth it for the added reach.

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Canon EF 1.4x III , Extender III