Hi,
they have come a long way since I used them in 1965.
Start the motor, drop the clutch (hope like hell the action will happen) and 100ft of 16mm film goes through the rotating prism shutter in about 3 seconds.
Open the camera, remove the spool and blow the last meter or so of film dust out of the workings.
The new ones now are retrospective i.e. running all the time to memory, if some thing happens push the button when the action being recorded is complete, and you have it in the can so to speak.
Now where's me tin hat and mug of coco?
cheers