Canon EOS 90D DSLR Camera with 18-135mm Lens User Manual
Page 185
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185
Wireless Flash Photography Using Optical Transmission
Autofl ash With Multiple Receivers
Multiple receivers can be treated as a single fl ash unit or, if you prefer to
adjust the fl ash ratio, as separate groups.
Basic settings are as follows.
Set these basic settings.
Flash mode
: E-TTL II
Wireless functions :
0
Channel
:
(same as receiver)
[
1
All] Firing multiple receivers as a single fl ash unit
All fl ash units fi re at the same output,
and the total, combined output is
automatically controlled to provide
standard exposure.
Set [Firing group] to [
1
All].
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