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Optical transmission
MASTER Canon
Press the wireless option button repeatedly until master canon is shown on the
display .
Press the mode key to switch between TTL / M / Multi mode .
Channel setting
Press the zoom button repeatedly until the
channel is highlighted . Press the left and the right
button to set the channel (1-4) .
Main unit Flash On / Off:
You can disable the main unit flash so that only
the slave unit‘s flash fires .
Press the zoom button repeatedly until the master
icon is highlighted . Press the left and right button
to change the icon < > .
< > Master flash turned off .
< > Master flash turned on .