230Regarding your Speedlite (slave unit), refer to its instruction manual andset it as follows. The settings other than the ones below for the slaveunit’s control are all set with the camera. Different types of CanonSpeedlite slave units can be used and controlled together.(1) Set the Speedlite as a slave unit.(2) Set the Speedlite’s transmission channel to the same channelas set on the camera.* 1(3) If you want to set the flash ratio (p.236), set the slave unit ID.(4) Position the camera and slave unit(s) within the range shown below.(5) Face the slave unit’s wireless sensor toward the camera.* 2*1: If the Speedlite does not have a transmission channel setting function, the cameracan work with any channel.*2: In small rooms, the slave unit may work even if its wireless sensor does not face thecamera. The camera’s wireless signals can bounce off the walls and be received bythe slave unit. When using an EX-series Speedlite with fixed flash head and wirelesssensor, take pictures to make sure it can fire.Using Wireless FlashNSlave Unit Settings and PositionApprox.10 m(32.8 ft.)Approx.7 m(23.0 ft.)Approx. 5 m(16.4 ft.)Approx. 7 m(23.0 ft.)Approx.80°Example of Wireless Flash Set-upIndoorsOutdoorsThe camera’s master unit function cannot be used for wireless flashshooting with radio transmission.
