Canon 550 EX User Manual
Page 65
Wireless E-TTL Autoflash With Flash Ratio ON
Press the <
> button to
register the flash ratio.
• The flash ratio bar stops blinking and
remains displayed.
• To indicate that a flash ratio has been set,
A:B will remain displayed on the
master unit’s LCD panel.
Follow the basic procedure for
wireless E-TTL autoflash picture-
taking on page 60 and take the
picture.
65
5
6
• During the setting procedure, A:B and
blink for 8 sec. and then remain
displayed. To make them blink again (so you can alter the flash ratio), press the
<
> button again.
• The flash ratios corresponding to the
positions on the flash ratio scale are shown
below.
(5.6:1)
(2.8:1)
(1.4:1)
(1:1.4)
(1:2.8)
(1:5.6)
• Flash ratios of A:C and B:C cannot be set.
After you set the flash ratio and the flash ratio bar is displayed, you can still change the
A:B flash ratio with the <
> and <
> buttons.
05. F073-E (51~) 02.4.1 2:12 PM Page 65