Canon EOS 90D DSLR Camera with 18-135mm Lens User Manual
Page 187
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187
Wireless Flash Photography Using Optical Transmission
Autofl ash With Multiple Receivers and a Sender
You can include a sender in the wireless fl ash photography arrangements
1
Set these basic settings.
Flash mode
: E-TTL II
Wireless functions :
0
+
3
Channel
:
(same as receiver)
2
Set [Firing group].
Select
[
1
All and
2
]
or
[
1
(A:B)
2
]
.
Before shooting with
[
1
(A:B)
2
]
, set
the A:B fl ash ratio.
[
1
All and
2
]
A
B
[
1
(A:B)
2
]
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