A recent stop motion animation test on a clockwork mechanism.
500 high-resolution full frame images taken at 1 millisecond intervals using a high speed flash setup and a Mumford Time Machine.
500 photographs triggered by a photodiode across one of the moving arms. Each frame was incremented by 0.001 second delay. So this represents 0.5 second of movement but took a couple of hours to shoot.
This is an updated attempt at this animation, the original can be seen here.