Canon 3814B004 - EOS 7D Digital Camera SLR, Instruction Manual

Page: 129 / 296

129
Using Wireless Flash N
[
1
(A:B C)] Multiple slave units in multiple groups
This is a variant of the [
1
(A:B) ] setup on the preceding
page. This setup has group C
eliminate the shadows
created by groups A and B.
Refer to your Speedlite’s
instruction manual to set the
slave ID of the three slave units
to A (Group A), B (Group B),
and C (Group C) and position
them as shown in the
illustration.
1
Set [Firing group] to [
1
(A:B C)].
2
Set the desired flash ratio and
shoot.

Select [ A:B fire ratio ] and set the
flash ratio.

Set flash exposure compensation for
group C as necessary.
A B
C
80
o
Approx. 7m
(23.0ft.)
Approx.
5m (16.4ft.)
Approx.
7m
(23.0ft.)
Approx. 10m
(32.8ft.)
Indoors
Outdoors

If [ Firing group ] is set to [
1
(A:B) ], group C will not fire.

If group C is pointed toward the main subject, overexposure may result.