Canon Speedlite Transmitter ST-E3-RT - Manual (Page 34)

32
a: Wireless Multiple Flash Shooting with Flash Ratio
4
Set the flash ratio.
Press function button 3 <F>.
Press function button 3 <A>.
Turn <9> to set the flash ratio, and
press the <8> button.
Press function button 4 <?> to
return to the shooting-ready state.
5
Take the picture.
X The slave units flash at the set flash
ratio.
You can add firing group C to firing
groups A and B. C is convenient to set
lighting so as to eliminate the subject’s
shadow.
The basic setting method is the same as
“Autoflash Shooting with Two Slave
Groups”.
1
Set a flash as firing group C.
For the slave unit settings, see the
flash’s instruction manual.
2
Set to <^>.
Set the master unit to
<^> in the same way
as steps 2 and 3 on the preceding
page.
Autoflash Shooting with Three Slave Groups
C
A
B
COP
Y