Canon SPEEDLITE EL-1 Advanced User's Manual page 83

2.
Set the flash mode to <
Press the joystick up, down, left, or right, or turn <
<
When you press the camera's shutter button halfway, the effective flash
range (1) is displayed.
Note
When < > is set, flash exposure compensation (
( ) can be performed.
>, then press the joystick vertically.
83
>.
) and FEB shooting
> and select