LG CineBeam 4K HU70LS Owner's Manual page 28

28
1
(Focus Adjustment) button on the remote control or the
Press
button on the projector to execute the [Focus Adjustment] function.
2
You can adjust the focus using the left and right buttons on the projector or
the left and right buttons on the remote control. You can adjust the focus
most effectively when the left and right screen are balanced. When adjusting
the focus on the screen, do not let the product shake.
3
If the angle of the projection is not perpendicular, use the [Keystone] function.