Originally Posted by jsrockit
Hmmm, how did people photograph kids playing before auto focus?
A lot of younger photographers have grown up without ever having used a manual focus lens, so for them auto focus is the norm. Now they have kids. When auto focus lets them down, they look for a technological solution rather than adjusting their shooting style to include things like anticipation. My guess is that a significant portion of the out of focus shots are not as a result of lack of auto focus speed, but of the auto focus focusing on the wrong thing. You have to make sure the subject is in the auto focus area which requires you to think ahead. Another portion are likely out of focus due to motion blur, because the shutter speed selected by the program mode is inappropriate for the situation. That also requires some forethought. The OP did mention that it was not very bright when he was shooting, didn't he? Likely the camera selected a slow shutter speed coupled with a large aperture so you get the worst of both for action being in focus.