Canon SPEEDLITE EL-1 Advanced User's Manual page 84

< >: Manual External Flash Metering
You can manually set the Speedlite with the ISO speed and aperture set on the camera. The
flash output is automatically adjusted according to the ISO speed and aperture that you set.
1.
Select <
2.
Set the flash mode to <
> with the joystick.
Press the joystick up, down, left, or right, or turn <
< >, then press the joystick vertically.
>.
84
> and select