Owner's Manual

75
This section describes basic fully automatic wireless shooting when
using a device (master) equipped with the optical transmission wireless
master function and a 430EX III-RT/430EX III set as a slave unit.
For details on optical transmission wireless flash shooting and master unit
operation procedure, refer to the instruction manual of the master device.
1
Set the master unit.
Set the device with the master
function as the optical transmission
wireless master unit.
2
Set the slave unit.
Set the 430EX III-RT/430EX III to be
controlled wirelessly from the master
unit as the slave unit (p.73).
A, B, or C can be set as the firing
group.
3
Set a channel.
If the channels of the master unit and
slave unit are different, set them to
the same number (p.73).
4
Position the camera and the
flash.
Position them within the range shown
on page 72.
5
Set the flash mode to <a>.
Set the flash mode of the master unit
to <a>.
The slave unit is set automatically to
<a> during shooting by control
from the master unit.
Check that the firing group control is
set to <8> (no flash ratio control is
set: _).
a : Fully Automatic Wireless Flash Shooting