72Using a Canon device with an optical transmission wireless masterfunction and 430EX III-RT/430EX III set as a slave unit makes it easy toshoot with wireless multiple flash lighting in the same way as normal E-TTL II/E-TTL autoflash shooting.The system is designed so that the settings of the master unit are setautomatically on the 430EX III-RT/430EX III (slave) that is wirelesslycontrolled. Therefore, you do not need to operate the slave unit duringshooting (except when set as the individual slave, p.78).For details on how to perform optical transmission wireless flashshooting, refer to the instruction manual of the device equipped with themaster function.: Optical Transmission Wireless Flash ShootingPositioning and Operation Range (Wireless flash shooting examples)xMApprox. 80°Approx.10 m/32.8 ft.Approx.15 m/49.2 ft.Approx.12 m/39.4 ft.IndoorsOutdoorsTransmission distance(Master: When using600EX-RT/600EX)Device with opticaltransmissionwireless masterfunction430EX III-RT/430EX IIIApprox.8 m/26.2 ft.To avoid interfering with transmission, do not place any obstaclesbetween the master unit and slave unit.The transmission distance differs according to the master unit used.Refer to the instruction manual of the master unit.Before shooting, perform a test flash (p.18) and test shooting.Position the slave unit, using the provided mini stand (p.14).
