Canon Speedlite 550EX Instructions Manual page 53

2. Setting the 550EX as a Slave Unit
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·1·
SLAVE
ASTER
Set the wireless selector to
SLAVE
on
the 550EX to
be
used as a slave unit. A
550EX set in this way is called a ·slave
unit."
The slave unit's Hash head zoom setting is sal
automatically to III C' ~ _.
~
You can change 1 he slave unit's flash head zoom settlnlil manually with the ZOOM
LiI
button.
53