LG K20 Plus User Manual page 60

Burst shot
You can take continuous shots of photos to create moving pictures.
Touch and hold .
Continuous shots are taken at a fast speed while is held down.
You can take up to 30 photos.
Simple view
Tap Simple view to hide the menus on the camera screen. Tap
to display them.
AE/AF lock
You can fix the current exposure level and focus position by touching
and holding the camera screen. To turn off the feature, tap any other
area on the screen.
Useful Apps 59