The video you are about to watch is real video footage. The lighting was equally dispersed onto both comparison projector screen materials. In the bright scenes diffused light was used measuring 7.5 footcandles. In the dark scenes the room measured .6 footcandles. You will quickly notice the projector screen produces around a 300% increase in contrast the bright environment. In the dark room the Black Diamond screen eliminates the light scatter on the walls and ceiling that is created by the projector, therefore lowering the unwanted washout and increasing the contrast around 200%. The end result...more contrast no matter what your environment, not matter what projector you are using!