, , ~, <8>, C>,, B:, , Wireless Flash with Three Slave Groups"> Canon 580EX II -------------_
[l] •Theflash ratio range
of
8:
1-
1:
1- 1:8is equivalent to
3:
1-
1:
1- 1:3 in
stops(1/2-stop increments).
•Theflash ratio under the •mark is shown
in
parenthesesbelow the scale.
8:1
•
4:1
•
2:1
•
1:1•1:2 •1:4 •1:8-------------_

......

(5.6:1) (2.8:1) (1.4:1) (1:1.4) (1:2.8) (1:5.6)
Wireless Flash with Three Slave Groups
Indoors 12m(39.4ft.)
You
can haveslave groups Aand Band also add slave group
C.
You
can use
slavegroups Aand B
to
obtain the standard flash exposureof the subject,
and slavegroup Cto illuminate the background
to
eliminate shadows.

'1

Set the slave units.
•
See
"Settingthe
Slave
Units"on page
41
to
set
the
slave
unit's
10
to <A>,
<8>,
or
<C>.
•Forslave <C>, also set the flash
exposurecompensation as necessary.
43