You can use the projector’s H/V-Keystone setting to correct the shape of an image that is unevenly rectangular on the sides. You can correct images up to 30º right, left, up, or down.
Correcting Image Shape with H/V Keystone
1. Turn on the projector and display an image.
2. Press the [Menu] button on the control panel or remote control.
3. Select the Installation menu and press [Enter].
4. Select Geometry Correction and press [Enter] (EH LS12000B). You see the Geometry Correction screen.
5. Select H/V-Keystone and press [Enter]. Then select Yes and press [Enter] if necessary. You see the H/V-Keystone adjustment screen:
6. Use the arrow buttons on the projector or the remote control to select between vertical and horizontal keystone correction and to adjust the image shape as necessary.
7. When you are finished, press [Esc]. After correction, your image is slightly smaller.
Read more:
Epson EH-LS12000B Projector Remote Installing Tip
