Ideally, place the projector at a height where its lens is between the top and bottom of the screen. That way, you can keep the projector level and use the vertical lens shift dial to position the image. This produces the best-looking picture.

Try to be as close as possible to the calculated projector position when installing the projector. Too much lens shift can cause minor reduction in image dimensions. The image display position cannot be moved to the maximum distance in both the vertical and horizontal directions. For example, the image cannot be shifted vertically when it has been shifted horizontally by the full amount. When the image has been shifted vertically by the full amount, it can be shifted up to 9 percent of the horizontal width of the screen.

If you place the projector off to the side, aim it straight ahead (rather than at the center of the screen), then use the horizontal lens shift dial to center the image on the screen.

Horizontal lens shift dial

Vertical lens shift dial

Caution: Do not try to move the lens by hand, or you may damage the projector. Always use the lens shift dials to change the lens position.

14 Setting Up the Projector