Canon EOS 80D (W), Instruction Manual, Page: 252 / 526

Wireless Flash Photography
N
252
The built-in flash can also be added to wireless flash shooting explained
on pages 250-251.
The basic settings are shown below. By changing the [
Firing group ]
setting, you can shoot with various wireless flash setups of multiple
Speedlites complemented with the built-in flash.
1
Basic settings:
Flash mode : E-TTL II
Wireless func. :
0
+
3
Channel : (Same as slave units)
2
Set [Firing group].

Select [
1
All and
2
] or
[
1
(A:B)
2
].

With [
1
(A:B)
2
], set the A:B flash
ratio and shoot.
Fully Automatic Shooting with the Built-in Flash and Multiple External Speedlites
A B
[
1
All and
2
] [
1
(A:B)
2
]