Canon Speedlite 430EXII Instruction Manual page 32

Setting the Slave ID
Set the slave ID if you use two (A and B) or three (A, B, and
C)
slave
groups.
,
p r e s s the
<ZOOMI->
button
so that
< - >
blinks.
% I
w - ' d -
L?-,-,L
Set the slave ID.
r
Press the button to select the
slave ID (A, B, or C), then press the
<a@
> button
1 -
Modeling Flash
If the camera has a depth-of-field preview button, pressing it will fire the
flash continuously for 1 sec. This is called the modeling flash.
It enables you to see the shadow effects on the subject and the lighting
balance. You.can fire the modeling flash for both wireless and normal
flash shooting.
0
Do not fire the modeling flash more than 10 consecutive times. If you
fire the modeling flash 10 consecutive times, allow the Speedlite to
rest for at least
10
min. to avoid overheating and deteriorating the flash
head.
The modeling flash cannot be fired with the EOS REBEL 20001300 and
Type-B cameras (p.2).