Powershot S2 IS Gallery - hdwalther
This is a shot taken in Tv-priority mode at 1/1000 sec.  I was able to freeze the action, and I focus-locked before he jumped out so I could ensure a quick shot.  The way I did that was by telling him to swing back and forth for a while.. when he was about at the point which I knew he would jump out, I focused on him.  Then I let him know I was ready, and waited until he jumped to depress the shutter button all the way.

This is a shot taken in Tv-priority mode at 1/1000 sec. I was able to freeze the action, and I focus-locked before he jumped out so I could ensure a quick shot. The way I did that was by telling him to swing back and forth for a while.. when he was about at the point which I knew he would jump out, I focused on him. Then I let him know I was ready, and waited until he jumped to depress the shutter button all the way.