Canon EOS RP Instruction Manual page 437

Flash exposure compensation
z
If flash exposure compensation is set with the Speedlite, you cannot set the
o
flash exposure compensation with the camera. If it is set with both the camera
and Speedlite, the Speedlite's setting overrides the camera's.
Flash exposure bracketing
z
You can set flash exposure compensation
up to ±3 stops in 1/3-stop increments.
For details, refer to the Speedlite's
Instruction Manual.
While changing the flash output
automatically, three shots will be taken.
For details, refer to the Instruction Manual
of a Speedlite equipped with flash exposure
bracketing.
Setting the Flash Function
229