In article , says...

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


Nope, I'm familiar with rotating mirror high speed cameras, we also had them
for ultra high speed work. This was a fairly simple to make device. I can't
remember if it was shop-built, but it would be feasible to make it yourself.
And it had multiple images of the action on *each* frame, very nice.

--
Dennis