Canon Speedlite ST-E10 - Page 74

: Custom Functions
You can set Custom Functions for the transmitter from the camera menu. The information
displayed varies depending on the camera used.
1.
Select [Flash C.Fn settings].
In [External Speedlite control], select [Flash C.Fn settings].
2.
Set the Custom Function.
Select the Custom Function number and set the function.
3.
Change the setting.
Select an option and then [OK].
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