Canon Speedlite 600 EX-RT User Manual (en, zh)

[: Shooting with a Different Flash Mode for Each Group
Set the flash mode.
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 
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.