LG v20 User Manual page 105

Focus peaking
Focus peaking can be used in the MANUAL camera
video mode (selected in the Second screen).
1. Tap FOCUS in the manual settings at the bottom of the screen.
2. Use the focus peaking control slide bar on the right of the screen to bring
the subject into focus.
To turn it off, tap Focus peaking above the slidebar.

Entertainment
or the MANUAL
103