I have done many shots of this exact type, using a variety of Canon\'s fastest lenses on 1DMkIIN, 1DsMkII, 40D and 7D.
The reasons this particular target type was favoured:
(1) It really challenges (mostly) the camera AF system, and
(2) I can get a reasonable repeatibility of individual test runs because in my area pijuns are much more plentiful than Bald eagles and such, they generally fly faster than eagles, and I can get them to fly head on towards me.
To cut the long story short, this is the typical in-focus capture score I get:
1DMkIIN......2-4 shots OK out of 100 shots fired.
7D..............0-1 shots OK out of 100 shots fired.
The bottom line is that in my test an OK shot with 7D should really be viewed as a lucky (random) success.
As a result, I do not use 7D for any sort of fast action photography any longer. 1DMkIIN, while far from perfect, still does an OK job on action shots for me.
Jan 06, 2012 at 06:56 PM
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