Canon EOS Rebel T4i 18-135mm IS STM Lens Kit, Instruction Manual, Page: 232 / 372

232
Custom Wireless Flash Shooting
[
1
(A:B)] Multiple slave units in multiple groups
Divide the slave units into groups A and
B and change the flash ratio to obtain
the desired lighting effect.
Refer to your Speedlite’s instruction
manual to set one slave unit’s slave ID
to A (Group A) and the other slave unit’s
ID to B (Group B) and position them as
shown in the illustration.
1
Select [Wireless func.].
Follow step 2 on page 230 to select
[
0
], then press <
0
>.
2
Set [Firing group] to [
1
(A:B)].
3
Set the desired flash ratio and
take the picture.
Select [ A:B fire ratio ] and set the
flash ratio.
A B
If [ Firing group ] is set to [
1
(A:B) ], group C will not fire.
The 8:1 to 1:1 to 1:8 flash ratio is equivalent to 3:1 to 1:1 to 1:3 stops (1/2-
stop increments).
COP
Y