Canon Speedlite 600EX-RT Instruction Manual - Page 80

Wireless Settings To perform optical transmission wireless shooting, set the master unit and slave unit with the following procedure. Master Unit Setting Display and . Press the button to display (optical transmission) and . Slave Unit Setting Display and . Operate and set the flash you want to set as the slave unit. Press the button to display (optical transmission) and . To perform normal flash shooting, press the button to clear the wireless (master/slave) settings. Transmission Channel Setting To avoid interference with optical transmission wireless systems used by other photographers, you can change the transmission channel. Set the same channel for both the master unit and slave unit. 1 Press function button 4. To set the master unit, press function button 4 to display . To set the slave unit, press function button 4 to display . 78