Canon 550EX - Manual (Page 62)

Wireless E-TTL Autoflash With Flash Ratio OFF
H Check for the following icons on the
■ master unit’s LCD panel:
• ETTL displayed
. ■¡fan«» not displayed
• displayed
p Make sure the master unit’s pilot
^ lamp is lit and the slave units are
ready.
3 Press the pilot lamp to test the
wireless transmission.
4 Focus the subject and take the
picture.
The master unit can also be set for bounce flash.
With master flash OFF, you can use one slave unit as a wireless off-camera
Speedlite,
Any number of slave units can be used
The flash ratio can also be changed by changing the distance of the slave units to
Ihe
subject. With the EOS-3, you can use the modeling flash to check the lighting effects,
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