Canon Speedlite 58OEX Instruction Manual page 40

Cil
0
The flash ratio range of 8:1 - 1:1 - 1:8 is equivalent to 3:1 - 1:1 - 1:3 in stops (1/2-stop
increments).
t!1
The flash ratio at the - is shown in parentheses below 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
A~
15m (49.2ft.)
1
10m
(32.8ft.)~
I B
I
I
I
80
0
___ L _
I
I
I
12m (39.4ft.)
You can have slave groups A and B and also add slave group C. You can use
slave groups A and B to obtain the standard flash exposure of the subject, and
slave group C to illuminate the background to eliminate shadows.
Set the slave units.
;~
See "Set the Slave Unit" on page 38 to set
the slave unit's 10 to <A>, <8>, or <C>.
~
For slave <
C
>,
also set the flash exposure
compensation as necessary.
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