100-400mm L IS vs. 70-200mm L IS with 2xII extender

Started Aug 25, 2010 | Discussions thread
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mmullen Veteran Member • Posts: 4,279
Re: New 70-200MKII with 2x extender.

ATR wrote:

No, I have the first version. I'll probably try out the new 2x II on it soon.

I really doubt the new EF 2X III will provide much help with the 70-200 f2.8 IS (Mk I). The problem is not with the current TC's it's just that the lens is not that sharp at 200mm (especially wide open which is where you often need to be with a 2X mounted).

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Mike Mullen

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