Instruction Manual
Page 107
...600EX-RT/600EX) ' Speedlite Transmitter ST-E3-RT Transmitter for radio transmission wireless control of Speedlites set as slave units. ( Speedlite Transmitter ST-E2 Transmitter for macro photography. , Speedlite with optical transmission wireless slave function 580EX II, 580EX, 550EX, 430EX II, 430EX, 420EX, 320EX, 270EX II - Equipped with dust and water resistance equivalent to 600EX-RT/600EX. / Speedlite... power source other than Canon may result in flash. * Macro Ring Lite MR-14EX / + Macro Twin Lite MT-24EX Flash for optical transmission wireless control of Speedlites set as slave units....
...600EX-RT/600EX) ' Speedlite Transmitter ST-E3-RT Transmitter for radio transmission wireless control of Speedlites set as slave units. ( Speedlite Transmitter ST-E2 Transmitter for macro photography. , Speedlite with optical transmission wireless slave function 580EX II, 580EX, 550EX, 430EX II, 430EX, 420EX, 320EX, 270EX II - Equipped with dust and water resistance equivalent to 600EX-RT/600EX. / Speedlite... power source other than Canon may result in flash. * Macro Ring Lite MR-14EX / + Macro Twin Lite MT-24EX Flash for optical transmission wireless control of Speedlites set as slave units....