Quote:
Originally Posted by The1
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  |
Yes, the 2.0x TC will AF with you f/2.8.
If AF speed is critical, a 100-400mm or 400mm f/5.6 will AF faster than a 70-200mm f/2.8 with a 2x TC. The 2x is useable, just not ultra fast. A 1.4x TC will be pretty darn fast.
Dave