Slow Motion 6400fps tempered glass destruction on 16mm film using Photec iV camera

Shot in 2006 on Ektachrome 500T color negative film. Tempered glass hit by sledgehammer, at 6400fps (266x slower than realtime), using a Photec IV rotating-prism high speed camera. Aimed at the middle of the glass as it is hit by the sledgehammer much lower.