345 Check that the wireless flashsystem works.Press the master unit’s test firingbutton.X The master unit and slave unit(s) Cwill fire.If the slave unit(s) does not fire,adjust the position, angle, anddistance from the master unit.The wireless multiple flash system requires both flash tubes/heads A andB to fire. It will not work if only A or B is fired.If <a> is set with the following cameras, wireless multiple flash withslave C will not be possible.EOS ELAN ll/ELAN ll E/50/50E, EOS REBEL G/500N, EOS IX, EOS IXLite/IX7, EOS 3000/88, EOS REBEL 2000/300, EOS REBEL XS N/REBEL G II/3000N/66The flash ratio for flash tubes/heads A and B can be set as with normalflash photography. See “Setting the Flash Ratio” (p.21).If the slave unit’s auto power off takes effect, press the master unit’s testfiring button to turn on the slave unit.For shooting, <a> will also be set automatically for the slave unit(s).Features Compatible with Wireless FlashThe following features can be used as with normal flash photographywithout touching the slave unit(s).FE lock, flash exposure compensation, FEB, high-speed sync (FP flash)Wireless Multiple Flash Photography possible with C.Fn-5-1• Autoflash with slave unit(s) whose ID has been set to A or B.• Wireless multiple manual flash with flash tubes/heads A and B andslave unit(s) C firing at a different flash output.For details, refer to the instruction manual for the Speedlite equippedwith a slave function.COPY