Maiaibing said:If you are shooting portraits of your kids playing soccer, outer AF points could of course make sense if they are too close for your available DOF to nail the face when targeting the body. Otherwise you're just making your life difficult for yourself. Bodies are much better targets than heads.Random Orbits said:Maiaibing said:Why do you write about reliable off-centre AF points?
Your kid "running around" is a job for your centre AF point on any camera. 6D's centre AF point is brilliant; fast, accurate, very light sensitive. Using an outer AF point for a kid "running around" would be a poor choice even with the best AF module.
That is one of the main reasons why I upgraded from the 5DII to the 5DII -- off center AF capability. The vast majority of the soccer pics I take of the kids' games use the cross outer AF points. Being restricted to the center point results in having to frame a lot looser for cropping and then you're throwing out a lot of IQ with all those cropped pixels.
I target the head/upper chest logo. The uniforms are mostly monochromatic in the front so contrast is poor and swinging arms get in the way which are definitely out of the DOF. Shooting wide open with 70-200 II or 100-400 II and yes, the DOF is narrow but the 5DIII handles it well, which is something the 5DII did not. Using the center point limits composition if you're not willing to crop heavily or you lose a lot of pixels if you frame that loose to make center point only work -- neither is a great solution. I did it with the 5DII and the 20D before that but there is no way I'd go back to center point only. I could stop down, but that has a different look, and now I don't have to, even with an outer point.
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