« on: October 20, 2013, 07:30:24 PM »
Wouldn't the newer AF of the 5D3 be better suited for action-photography even with the lower framerate?Emphatically...no.I read that you can set the 1D-IV to use all 45 points and it should be able to track movement even if it leaves the initially chosen AF-point, but is this good enough or do you all stick to center point-AF with the surrounding points?That's the theory but in practice you'll have a disappointing keeper rate. On the 1D4 I tend to keep an expanded AF point on the action. This become second nature with a bit of practice. The 1DX with it's dedicated AF processor and higher available voltage hits the ball out of the park.Also, what is the highest ISO you feel comfortable with at the 1D-IV? With the 5D3 I usually don't hesitate to use 12800 and might even go higher in extremely low light.The 5D3 will outperform the 1D4 at higher iso but not by as much as you might think.
+1 again....pw giving spot on advice.