Thank you ,
Russ it possibly was Larry Pletcher that posted the haigh speed video in slow motion.
Larry also has some outstanding pics of flinter sparking.
Melsdad, It was just pure dumb luck ? I positioned myself between the lock and thew camera, selected auto exposure, pulled the trigger and the shutter at the same time, I'm guessing the exposure was about 1 1/2'' ?
Thais pic I shot with a flash, to compare what you see normally.
Cheers Bob.