Multi Plane effect

Hi everyone,

I just finished a job that had a few classic 2D animation multi plane camera move effects shots.

Although I know the basics, and managed to yield acceptable results, I was not completely happy with the consistancy or the final shots. I moved the back, mid, and foreground layers at different rates, played with the curves - finally got something that would pass..but


Anyway, I was wondering if there is a good tutorial method on setting up these types of shots, multiple layers, 3d camera that yield consistant and perdictable results. I suspect focal length and some kind of z-depth formula is key to getting the fore-ground, mid-ground, and background to move correctly while giving the impression of 3d space.

Hope this is clear.

JP