Canon 550 EX User Manual

Page 65

Wireless E-TTL Autoflash With Flash Ratio ON

Press the <

> button to

• 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.

• 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