Canon Speedlite 550EX Instructions Manual page 62

62
Wireless E· TIL Autoflash With Flash Ratio OFF
ETTl
m
Zoom 2'imm
1
Check for the following icons on the
master unit's LCD panel:
ETTL displayed
IIlBltlJI
nOI displayed
.~"i
displayed
2
Make sure the master uni t' s pilot
lamp is lit and Ihe slave units are
ready.
3
Press the pilol lamp 10 l esl
wireless transmission.
Ih,
4
Focus the subject and take the
picture.
The masler unil
can
also be sel for bounce flash.
Wilh maS ler Hash
OFF.
you can use one slave unit as a wire less off-camara
Speed li te.
Any number of slave
un~s
can
be used.
The
flash
ratio
can
also be ctlanpad by changing the distance of the slave unilS to the
subject. With the EOS·3. you
can
use the modeling flash 10 check the lighting ettects.