Bob,
Sync. of film movement with camera rotation is fairly straight forward.
Start with a circle.
The circumference of the circle is the amount of film moved in one 360 degree rotation.
The radius of the circle is the focal length of the lens.
that's it!
Of course optics reverse the direction that the image is moving when it arrives on the film plane.
And exposures are done through a vertical slit.
As an example:
a 28mm lens needs about 6 1/2 inches of film movement per rotation.
to Kghost:
Yes,in the digital world, stitching accomplishes the same thing, but it is definitely not the Elegant Solution.
