Home » Insights » Canon Extender EF 1.4x III & Extender EF 2x III

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Anonymous (unregistered) wrote on
11/30/2010 - 09:41.

I was real interested in the 2X extender III , as I just purchased a Canon 7D with the 100-400mm lens. Unfortunately, I just received an email back from Canon stating that unless you have an EOS 1 series camera, this extender will not do autofocus. If you have a 1 series camera it works only on the center AF point. As a previous poster stated, the lenses that it works with are listed at the Canon website. Canon will begin shipping these in late December and probably will be available in January. 

J 

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