At the core of Canon's Speedlite 470EX-AI Flash is the innovative, new AI Bounce technology. AI Bounce automatically and intelligently determines and dictates the optimal angle of flash based off two distance variables: the distance between the camera and the ceiling, and the distance between the camera and the shooting subject. This technology allows photographers, in particular those who are new to flash photography, to utilize the ideal lighting situation and natural brightness of the room. For more advanced photographers who often alter the horizontal or vertical direction of their camera back and forth, the Canon Speedlite 470EX-AI Flash will remember the previous bounce angle and restore the flash to that position.
Additional features of the Canon Speedlite 470EX-AI Flash include infrared AF assist mode, optical receiver transmission, and flash coverage from 14mm and 24mm to 105mm.