Canon MARK IV User Manual (en)

During the Live View display, you can still set the menu options. Live 
View functions are listed below.
Under the [6] tab with the [Live View/
Movie func. set.
] screen, you can set 
the following functions.
AF mode (p.131-137)
You can select [Live mode], [u Live mode], or [Quick mode].
Grid display
With [Grid 1l] or [Grid 2m], you can display grid lines. You can 
check the camera tilt before shooting.
Exposure simulation
• Enable 
The displayed image brightness will be close to the actual 
brightness (exposure) of the resulting image. If you set exposure 
compensation, the image brightness will change accordingly.
• Disable (E)
The image is displayed at the standard brightness to make the Live 
View image easy to see.
Metering timer
You can change how long the exposure setting is displayed (AE lock 
 Menu Function Settings
If you select [1 Custom WB regist.], [2 Dust Delete Data], [7 Save/
load settings on media
], [7 Regist/apply basic settings], [7 Sensor 
], [7 Clear all camera settings], or [7 Firmware Ver.], the Live 
View shooting will be terminated.