Instruction Manual

(3) M: Manual Exposure and TTL Autoflash

In this mode, you set both the shutter speed and aperture. The TTL autoflash

system controls the flash exposure based on the aperture you set.

Using Flash in Other Camera Modes

0.5 0.7 1 1.5 2 3 4 6 9 13 18

Set the camera's picture-taking mode

to M and set the desired aperture

and shutter speed anywhere from 30

sec. to the top sync speed. You can

also use buLb.

Set the 550EX's flash mode to

TTL.

Focus the subject.

A Check that the subject distance is

^ within the flash range displayed on

the 550EX’s LCD panel.

C Check that the i icon is displayed in

^ the viewfinder, then take the picture.

TTL QZoom

I imm

F-

> I 0.7 1 t.5 2 3 4 6 9 13 le I

If the Hash ranges below apply, the

icon will blink on the left end o( the scale.

Zoom Setting

Flash Range

17-28mm 0.5 m /1.6 ft or shorter

35mm and longer 0.7 m / 2.3 ft or shorter