Canon EOS 70D Instruction Manual

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Contents

Canon EOS 70D Instruction Manual Manual pdf 203 page image

203The camera’s built-in flash can work as a master unit with CanonSpeedlites with a wireless slave feature via optical transmission andwirelessly trigger the Speedlite(s) to fire.Be sure to read about wireless flash photography (optical transmission)in the Speedlite’s instruction manual.Regarding 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 external Speedlite as a slave unit.(2) Set the external Speedlite’s transmission channel to the samechannel as set on the camera.*1(3) If you want to set the flash ratio (p.210), set the slave unit ID.(4) Position the camera and slave unit(s) within the range shownbelow.(5) Face the slave unit’s wireless sensor toward the camera.* 2Using 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-upIndoorsOutdoorsCOPY