Canon Speedlite EL-5, Advanced User'S Manual, Page: 118 / 192

2.
Set the receiver firing group in (1).
Select either < > or < > for the firing group.
Set one receiver to < > and another to < >.
3.
Set the sender firing group in (2).
Complete steps 3–5 on the sender.
Press the joystick vertically or horizontally or turn < > to select the
item, then push the joystick straight in.
4.
Set to < >.
Press the joystick horizontally or turn < > to select < >, then
push the joystick straight in.
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