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

[J] With FE lock, if even one Speedlite will result in underexposure, the <~> icon will blink in the viewfinder. Open the aperture more or move the slave unit closer to the subject.

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 <ZOOM/~> button so that <~> blinks.

Set the channel No.

Turn the <@> dial to select the channel number, then press the <(!» button.

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Canon SBOEX instruction manual Using Fully Automatic Wireless Flash, Setting Communication Channel