Canon EOS 60D Instruction Manual page 138

3 Setting the FlashN
Setting the External Speedlite Custom Functions
138
Display the Custom Function.
1
With the camera ready to shoot with
an external Speedlite, select
[External flash C.Fn setting], then
press <0>.
Set the Custom Function.
2
Press the <U> key to select the
function number, then set the
function. The procedure is the same
as setting the camera's Custom
Functions (p.250).
To clear all the Custom Function
settings, select [Clear ext. flash C.Fn
set.] in step 1.