Here is a demo:
I didn't think a dollyzoom was possible in 3D because the zoomfunction isn't a real zoom. Seems like you managed to animate the focallenght of the lens. Cooolll... :)
A Dolly Zoom(or vertigo effect) in real life actually uses the focal length(focal length = zoom), so animating the focal length is the only way to achieve the change in lens compression that gives the effect.
Yes, Vertigo, Hitchcock, first movie it was used in. :)
Thanks for sharing.
Really an Awesome idea and rig to provide for us....a camera, its so important!