Setting the master/slave channel – Canon 550EX User Manual
Page 101
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3. Setting the Master/Slave Channel
To prevent your master unit from firing another photographer’s slave units,
four channels are provided to differentiate your slave units from unrelated
ones. The master unit and slave unit(s) in the same virireless flash system
must be set to the same channel No.
■4
Press the master unit’s <MODE>
* button and select M or MULTi.
• The TTL mode cannot be used with wireless
flash photography.
O To set the master unit’s channel No.,
^ press the <SEL/SET> button and
select
Pressing the
<SEL/SET
> button changes
the selection in the following loop:
» Rash output-
I-----------------------(Off)
Press the < + > or < — > button to set
the channel No. (1,2, 3, or 4).
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