Canon Speedlite Transmitter ST-E3-RT - Manual (Page 26)

24
This section describes basic fully
automatic wireless shooting when using
a transmitter attached to the camera
(master) and a wirelessly controlled flash
(slave).
1
Set the flash as the slave unit.
For the slave unit settings, see the
flash’s instruction manual.
Set A, B or C as the firing group. The
flash will not fire if it is set to D or E.
2
Check the channel and ID.
If the channels and IDs of the master
unit and slave unit are different, set
them to the same numbers (p.21, 22).
3
Position the camera and the
flash.
Position them within the range shown
on page 16.
4
Set the flash mode to <
a
>.
Press the <E> button on the
master unit and set the flash mode to
<a>.
The slave unit is set automatically to
<a> during shooting via the
control from the master unit.
a: Fully Automatic Wireless Flash Shooting
Autoflash Shooting Using One Slave Unit
COP
Y