Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 160)

Shooting with Speedlites
EL/EX Series Speedlites for EOS Cameras
Canon Speedlites Other Than the EL/EX Series
Non-Canon Flash Units
EL/EX Series Speedlites for EOS Cameras
Features of EL/EX series Speedlites (sold separately) can be used in flash photography with
the camera.
For instructions, refer to the EL/EX series Speedlite's Instruction Manual.
Flash exposure compensation
You can adjust flash output (flash exposure compensation). With an image displayed on
the screen, press the <
> button, turn the < > dial to select the flash exposure
compensation item, then turn the < > dial to set the flash exposure compensation
amount. You can set the flash exposure compensation up to ±3 stops in 1/3-stop
increments.
FE lock
This enables you to obtain appropriate flash exposure for a specific part of the subject.
Aim the viewfinder center over the subject, press the camera's <
> button, then
compose the shot and take the picture.
Caution
Setting [ : Auto Lighting Optimizer ] ( ) to an option other than [ Disable ] may
still cause images to look bright even if you set lower flash exposure compensation
for darker images.
In flash photography, set [
: Shutter mode ] to an option other than [ Electronic ]
( ).
160