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

• FEB

• High-speed sync (FP flash)

• Manual flash

• FE lock

• Stroboscopic flash

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.

1 Press the <G> button so that <w> blinks.

2 Set the channel No.

Press the <9> button to select the number, then press the <8> button.

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