Focus on Animation

Have I ever complained about pulling focus with still camera lenses? Why yes, yes I have.
For me, if one is going to use still-camera lenses, one should just grab the focus wheel and roll it back and forth. Pulling focus with a follow-focus jerry-rig is just not practical because the throw on still-camera lenses is too great. On cinema lenses the throw is less and it's much easier to use a follow-focus rig.
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Hey -- what takes four minutes and twenty-two seconds?

Why a frame of this animation, that's what!