, "> Canon 580EX II iii
Setthe
master
unit
and shoot.
Follow"Setting the Master Unit and
Shooting"
on
page42.
In
step
4,
select
<A:
B
C>.
oIf<IIlmmJI
A:B>
is
set, theslave unit
in
slavegroup <C> will notfire.
Ifyou point the slave unit
in
slavegroup <C>toward the subject, the
subjectwill be overexposed.
Modeling Flash
Ifthe camera has adepth-of-field preview button, pressing it will fire the
flash continuouslyfor 1sec. This
is
called the modeling flash.
Itenables 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.
oDo
not
fire
the
modeling
flash
more
than10
consecutive
times.
If
you
fire
the
modeling
flash10
consecutive
times,
allow
the
Speedlite
to
rest
for
at
least10 min.
to
avoid
overheating
and
deteriorating
the
flash
head.

~

Themodeling flash cannot be fired with the EOS REBEL 2000/300 and
Type-Bcameras (p.2).
About
Slave
Group
Control
44
Slavegroup A
iii
10
=A
10
=A
10
=A
Forexample, if you have the slave
10
set
to <A>forthree slave units, all three
slave units will
be
controlled as ifthey
were one Speedlite
in
slavegroup
A.