Thank you for purchasing a Canon product.The Canon Speedlite 270EX II is a compact flash unit for Canon EOS cameras, and workswith theE-TTL II and E-TTL autoflash systems. All control is performed on the camera side,letting you easily enjoy flash shooting in the same manner as a built-in flash.• Use with an EOS DIGITAL camera• The 270EX II is designed for optimum use with an EOS DIGITAL camera.• Use with an EOS film camera• When used with an E-TTL II orE-TTL autoflash EOS film camera, autoflash shooting canbe performed in the same manner as when used with an EOS DIGITAL camera.• The 270EX II cannot be used with TTL autoflash EOS film cameras.• Be sure to also read the description of flash shooting in the camera's instructionmanual. For convenience, a camera compatible with E- TTL 11/E-TTL autoflash systems isindicated as Type-A camera in camera's instruction manuals.2ContentsNomenclature ............................................................................................................. 4Installing the Batteries .............................................................................................. 5Attaching the Flash ................................................................................................... 7Fully Automatic Flash Shooting ............................................................................... 8Flash Shooting in Each Camera Mode .................................................................... 9Switching Flash Coverage ...................................................................................... 11Bounce Flash Shooting ........................................................................................... 12Other Functions ....................................................................................................... 13Setting the Flash Functions by Camera Operation .............................................. 14Wireless Flash Shooting ......................................................................................... 17Remote Control Shooting ....................................................................................... 21Troubleshooting Guide ........................................................................................... 22Specifications .......................................................................................................... 243