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| Re: Post your Canon 200mm f/2 (200/2) shots! |
I have never owned the 400L 5.6 and I am aware of its reputation of having lighting fast AF so I am not going to speculate.
Instead, I can tell you that the 200L + 2X TC does the job at 400mm admirably. Yes, you do lose some on the IQ and AF, as is always the case with the 2X TC, but it's still good enough to track birds, cars, etc...I found that stopping it down to f5.6 is certainly good enough.
All 1DMKIII + 200L + 2x TC @400mm f5.6 AI Servo