Canon Speedlite 58OEX Instruction Manual page 41

Set the master unit and shoot.
%,j
See "Set the Master
Unit" on
page 39.
In
step 4, select <
A: Be>.
- - e If
<
~
A: B>
is set, the Speedlite in slave group
<
C>
will not fire.
@
If you point the slave group <
C
> Speedlite toward the sUbject, the subject will be
overexposed.
Modeling Flash
If the camera has a depth-of-field preview button, press it to fire a 1-sec. burst
of flashes. This is the modeling flash.
You can check the lighting and shadow effects. You can fire the modeling flash
for both wireless and normal flash shooting.
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.
[l]
The modeling flash cannot be fired with the EOS 300/REBEL 2000 and Type-B cameras
(p.2).
About Slave Group Control
Slave group A
For example, if you have the slave
10
set
to <
A
> for three Speedlites, all three
Speedlites will be controlled as if they
were one Speedlite in slave group A.
10=A ID=A 10=
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