Setting the master/slave channel, 6t0)(gi(q) – Canon 550EX User Manual
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To prevent your master unit from firing another photographer’s siave units,
four channels are provided to differentiate your slave units from unrelated
ones. The master unit and slave unit(s) in the same wireless flash system
must be set to the same channel No.
3. Setting the Master/Slave Channel
ETTL El Zoom iHmm
\ MODE +
— SEL/Ser ZOOM
n> O
■i
To set the master unit’s channel No.,
’ press the
select
Pressing the
the selection in the following loop:
(Off)
p Press the < + > or <-> button to set
^ the channel No. (1,2, 3, or 4).
0 Press the < SEL/SET > button.
• The
^E5M
icon and channel No will be
displayed
ETTL QZoom iWmm
f \''
SEL SET ZOOM
-©6T0)(gi(Q)
«LOT •‘Wet»-'
1
____ O ri_______________#11 n~)
To set the slave unit’s channel No.,
press the < SEL/SET > button and
select
• Pressing the < SEL/SET > button changes
the selection in the following loop:
—► 9------ ►
^
----------------------- (Off)
^1
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