Adjusting The Zoom / Focus (Zoom Series) - Optoma EX520 User Manual

Installation
You may turn the zoom ring to zoom in or out. To focus the image,
rotate the focus ring until the image is clear. The projector will focus
at distances from 3.28 to 38.7 feet (1 to 11.8 meters).
English


Adjusting the Zoom / Focus (Zoom Series)

Use the keystone buttons to correct image distortion. They can be
found on the remote control and on the projector's control panel.
. Keystone +
. Source Re-Sync .
Enter/Help
. Keystone -
Temp Lamp Power
Menu AV-Mute Power