Canon Speedlite 600EX-RT Instruction Manual page 68

[: Shooting with a Different Flash Mode for Each Group
66
Set the flash mode.
3
Set the flash mode of each firing
group by operating the master unit.
While <M> is displayed, press
function button 3 <F> and turn
<9> to select the group.
Press function button 2 <2> and
select the flash mode of the selected
group from <a>, <q> and
</>.
To turn the firing of the selected group
off, press function button 1 <R>
to set it to <OFF>.
Repeat step 3 to set the flash mode
of all groups.
Set the flash output or flash
4
exposure compensation amount.
While a firing group is selected, press
function button 3 <1>.
Turn <9> to set the flash function
corresponding to the flash mode, and
press <8>.
When using the <q> mode, set the flash
output. When using the <a> or
</> mode, set the flash exposure
compensation amount as required.
If you press function button 2 <@>
when <M> is displayed, flash
exposure compensation can be set for
all the firing groups.
Repeat step 4 to set the flash function
of all groups.
Press function button 4 <?> to
return to the shooting-ready state.