Canon Speedlite 470EX-AI Flash for Canon digital SLR cameras
A smart bounce flash that aims itself: Canon's Speedlite 470EX-AI promises to be a game-changer in the world of flash photography. It's the world's first flash with an AI (Auto Intelligent) Bounce function. This revolutionary flash detects the distance to your subject and to the ceiling, and calculates the ideal angle for the best flash results. Then the flash head swivels and tilts automatically to create the ideal bounce flash while you work on getting the shot.