Canon SPEEDLITE EL-1 Advanced User's Manual page 165

3.
Select the firing method.
Push the joystick vertically.
Push the joystick up / down / left / right or turn < > to select item (1),
then push the joystick vertically.
Push the joystick to the left or right, turn < > to select from < >
< > < >, then push the joystick vertically ( , ).
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