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Canon Extender EF 1.4x III Review -

Started Feb 6, 2017 | User reviews thread
Georgeee
Georgeee Contributing Member • Posts: 796
Re: Canon Extender EF 1.4x III Review -

Thanks for the review.

"* Mark your protective end caps that come fitted to the Extender so that you don't mix them up with those that came with your camera or other lenses etc. Although they look just like the ones that protect and fit your camera (and they look just like the ones that come fitted to your lenses) the FRONT cap is unique. The protective-cap that fits your camera lens-mount ring (to keep the dust off your sensor when shipping) won't fit the Extender. Even though it looks the same."

I did not know this until you mentioned it. Thanks

Just bought one to go with 100-400mm II. The II was not good and I sold it and lost interest of the extender until now. If I compare with the one taken without the 1.4xIII, I can see some lose of IQ, but acceptable. I only use it when needed of course, most likely on a single object (a bird for example). So I care more on the IQ at the center. Overall, the auto focus on 5DIII is pretty fast, the IQ is very good.

Here are my unscientific tests :

https://www.dpreview.com/forums/thread/4117113

 Georgeee's gear list:Georgeee's gear list
Canon EF 70-200mm F2.8L IS II USM Canon EF 16-35mm F4L IS USM Canon EF 100-400mm F4.5-5.6L IS II Sony a7R III Canon EOS R5 +6 more
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