I'm curious what settings people use when photographing children who are moving/playing. I have a GH2. I've been experimenting with various combinations of modes, auto-focus, ISO settings, etc. Not sure I've found what works best for me. I'm also a bit befuddled by the differences between AFC and Pre-AF. It appears that AFC works like C-AF but only when the shutter is pressed halfway? Does the setting of Pre-AF (Q or C) affect how AFC works?