DT wrote:
Our photog set up a nifty device at work many years ago, Probably not what you
need for this task, but worth mentioning. He mounted a 35mm camera on a plate
with a motor driven disk in front of the lens. The disk was about 6 inches in
diameter and had several radial slots about 1/8" wide. He could run the motor
at variable speeds. As an example, he set the camera for perhaps 1/2 second,
and spun the disc such that 10 slots passed the lens in that half second.

We were actually filming a bomb releasing from a aircraft model in a wind
tunnel. He tripped the shutter as a bomb was released, and each frame of the
film had the bomb photographed 10 discreet times to form a stop action
sequence.

that sounds like these monsters:

http://www.cordin.com/productsrm.html