Canon Speedlite 550EX Instructions Manual page 70

70
Wireless
E·TTl
Autoflash With Flash Ratio ON
• Wireless High·Speed Sync (FP Flash)
After setting up the wireless flash system with one or more slave units, you
can enable wireless high-speed sync by setting
mI
on the master unit.
You
need
not touch any corl1rols on the slave unilS.
The procedure for se11ing wireless high·speed syror:: is the same as for normal high·speed syror::.
See
page
32.
• Wireless FE Lock
After setting up the wireless flash system with one or more slave units, you
can enable wireless FE lock by pressing the camera's
<FEl>
button.
You
need
nollOIJCh any COI'1lrols on Ihe
slave
unilS,
• The procedure for
selling wireless FE lock is
the same as lor normal FE lock.
See page
34.
If there ale multiple slave units and one of them cannot provide the pmper exposure, the
i
iccn in Ihe viewfinder will bl ink as a warning.
E~her
use a larger aperture or place tM
slave unit closet' to the subject and try FE
lock
again.
• Wireless Flash Exposure Compensation
After setting up the wireless flash system with one or more slave units, you
can enable wireless flash exposure compensation by setting the flash
exposure compensation amount wi th the master unit.
You filled not louch any conirOIS on the slave units.
The proce<!ure for selting wireless flash exposure compensation is lhe same as lor normaillash
exposure compensation. See page 36.
@¥l
You can also se t flash
e~posure
compensation indi vidu ally lor each slave unit.
l.Il
See
page 36.
• Wireless Flash Exposure Bracketing (FEB)
After setting up the wireless flash system with one or more slave units, you
can enable wireless FEB by setting the flash exposure bracketing amount
with the master unit.
You need rIOllouclJ any controls on the slave units.
The p'ocedure for slning wireless FEB is the same as lor normal FEB. See page 38.