Setting the slave id – Canon 550EX User Manual
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4. Setting the Slave ID
With multiple slave units, a slave ID can be assigned to distinguish a slave
unit as being the main flash or fill flash. A flash ratio can thereby be set. Three
slave IDs are available: A, B, and C,
1
To set a slave unit’s slave ID, press
the
B1Q3.
Pressing the
the selection in the following loop:
'ВЕИШ"
(Off)
2
3
Press the <+> or < —> button to set
the slave ID (A. B, or C).
'
Press the
icon and slave ID will be
The
displayed.
If you want all the slave units to fire at the same flash output, you need not assign a slave
MM ID.
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