Canon 580EXII Instruction Manual page 32

Set the Speedlite to the camera's
aperture setting.
Press the
<
@
>
button so the
aperture setting blinks.
Turn the
<@>
dial to set the
aperture, then press the
<@>
button.
After completing the settings, press the
shutter button halfway. The effective flash
range will be displayed on the Speedlite's
LCD panel.
• With manual external metering, you can connect the camera to the
Speedlite's PC terminal with a sync cord and place the Speedlite at a
different position from the camera.
e You cannot connect a Speedlite to another Speedlite's PC terminal with
a sync cord. The second Speedlite will not fire.
31