Quote:
Originally Posted by dcstep
It'll only AF with a "pro" body, like a 1D MkIV. I had a 400/5.6 and that had the same problem with my 7D and 5D MkII. You need to start with f/4 and the 1.4x will take you to the f/5.6 limit.
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gottcha.... so would only work with my 70-200 F2.8, but pretty much defeat of having the 100-400 and i still won't reach as far unless i get the 2.0TC, and then I'm worse off then the 100-400 since it at least starts at F4.
I guess i'll Leave that on the backburner and keep dreaming about the 1D then
