Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 211)

Shooting with Speedlites
EL/EX Series Speedlites for EOS Cameras
Canon Speedlites Other Than the EL/EX Series
Non-Canon Flash Units
Quick Flash Group Control
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.
Sync speed
Varies depending on the shutter mode.
[ : Shutter mode] Setting Sync Speed
Mechanical 1/200 sec. or slower
Elec. 1st-curtain 1/250 sec. or slower
Flash exposure compensation
You can adjust flash output (flash exposure compensation). With an image displayed on
the screen, press the <
> button repeatedly to select the flash exposure
compensation item, then turn the < > dial to set the flash exposure compensation
amount.
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.
211