Canon Speedlite Transmitter ST-E3-RT Manual

Page of 220
52
Transmitter Control from Camera’s Menu Screen
The displayed contents vary depending on the camera. If C.Fn-20 and 
22 are not displayed, set them by operating the transmitter. For the 
Custom Functions, see pages 56 to 57.
1
Select [Flash C.Fn settings].
 
Select [Flash C.Fn settings] or 
[External flash C.Fn setting].
X
You can now set the Custom 
Functions of the transmitter.
2
Set the Custom Function.
 
Select the Custom Function number 
and set the function.
 
To clear all the Custom Function 
settings, select [Clear all Speedlite 
C.Fn’s
] or [Clear ext. flash C.Fn 
set.
] in step 1.
Transmitter Custom Function Settings
When using a camera released up to 2011 or EOS REBEL T5/EOS 1200D, 
the C.Fn-20 and 22 settings are not cleared even if [Clear all Speedlite 
C.Fn’s
] is selected. When following the “Clearing All the Custom Functions” 
operation on page 55, all the Custom Functions are cleared.
You cannot set or clear all Personal Functions (P.Fn/p.58) from the camera’s 
menu screen. Set them by operating the transmitter.
COP
Y