Canon Speedlite 430EX Instruction Manual page 28

Using Fully Automatic Wireless Flash
Flash exposure compensation and other settings set with the master
unit will also be automatically set in the slave units. Thus, you need not
make settings on the slave unit(s). Wireless flash with the following
settings can be done in the same way as with normal flash shooting.
• Flash exposure compensation
• High-speed sync (FP flash)
• FE lock
With FE lock, if even one Speedlite will result in underexposure, the <Q>
icon will blink in the viewfinder. Open the aperture more or move the
slave unit closer to the subject.
With a wireless flash system, the master unit's settings will not be
displayed on the 430EX's LCD panel.
Setting Communication Channel
If there is another Canon wireless flash system nearby, you can change
the channel No. to prevent signal confusion. Both the master and slave
units must be set to the same channel No.
Press the <G> button
1
so that <w> blinks.
Set the channel No.
2
Press the <9> button to select the
number, then press the <8> button.
• FEB
• Manual flash
• Stroboscopic flash
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