I animated a focus pull using DragonFrame and my Canon 7D this weekend. It is the first time I have done this with this set up. It went very smoothly except at the end of the night when I tried to put my camera away. Knowing I would be touching the camera for every frame, I had tightened it to the tripod so tightly that I could not unscrew the bolt! I struggled with it for a long time before I finally got it loose.
The focus pull clip is up on Vimeo. Check it out!
The character animation is shot on twos, meaning that two frames are taken of each move, and the focus pull is shot on ones, meaning that there is a move on every frame taken. Shooting the focus pull on ones makes is very smooth.
This character has just woken from a dream of dolls dancing to see that the seed has sprouted.