Canon SPEEDLITE EL-1 Advanced User's Manual page 86

4.
Set the same aperture as on the camera.
Push the joystick up / down / left / right or turn <
then push the joystick vertically.
Push the joystick to the left or right or turn <
value, then push the joystick vertically.
The effective flash range corresponding to the preset ISO speed and
aperture value is displayed.
Note
When shooting with the <
and the Speedlite connected by a commercially-available sync cord, you can shoot
without attaching the flash to the camera.
Even if you connect a different Speedlite to the Speedlite's sync terminal with a
sync cord, it will not fire.
> setting and the sync terminals of the camera
86
> to select item (2),
> to set the aperture