Canon 6825B002, Instruction Manual

Page: 27 / 106

25
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.
1
Set the slave units.

See “Setting the Slave Units” on page 23 to set the
slave unit’s ID to <
1
>, <
2
>, or <
3
>.

For slave < 3 >, also set the flash exposure
compensation as necessary.
2
Set the master unit and shoot.

Follow “Setting the Master Unit Flash Ratio” on
page 23. In step 1, select <
k >.
Wireless Flash with Three Slave Groups
A
B
C

If <
l
> is set, the slave unit in slave group <
3
> will not fire.

If you point the slave unit in slave group < 3 > toward the subject, the subject will be
overexposed.
COP
Y