Operation Manual

Table Of Contents

Positioning your projector

Obtaining a preferred projected image size

The distance from the projector lens to the screen, the zoom setting (if available), and the

video format each factors in the projected image size.

16:10 is the native aspect ratio of this projector.

The projector should always be placed horizontally level (like flat on a table), and

positioned directly perpendicular (90° right-angle square) to the horizontal center of the

screen. This prevents image distortion caused by angled projections (or projecting onto

angled surfaces).

The modern digital projector does not project directly forward (like older style reel-to-

reel film projectors did). Instead, digital projectors are designed to project at a slightly

upward angle above the horizontal plane of the projector. This is so that they can be

readily placed on a table and will project forward and upwards onto a screen positioned so

that the bottom edge of the screen is above the level of the table (and everyone in the

room can see the screen).

You can see from the diagram on page 19, that this type of projection causes the bottom

edge of the projected image to be vertically offset from the horizontal plane of the

projector.

If the projector is positioned further away from the screen, the projected image size

increases, and the vertical offset also increases proportionately.

When determining the position of the screen and projector, you will need to account for

both the projected image size and the vertical offset dimension, which are proportional to

the projection distance.

BenQ has provided a table of screen size to assist you in determining the ideal location for

your projector. Refer to "Projection dimensions" on page 19 depending on the projector

you are using. There are two dimensions to consider, the perpendicular horizontal distance

from the center of the screen (projection distance), and the vertical offset height of the

projector from the horizontal edge of the screen (offset).

4:3 aspect image in a 16:10

aspect display area

16:10 aspect image scaled to a 4:3 aspect

display area