Lens Shift Range Diagram; Adjusting The Zoom/Focus - BenQ LU9255 User Manual

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Lens shift range diagram

Desk-Front Projection
Ceiling Mount-Front Projection
Vertical shift
Notice (when edge blending)
To avoid the image shaking or some pixels in the display may be misaligned, do not use the
projector in the following location:
In a building close to a construction site.
In a room where an air conditioner unit is working and it vibrates.
In a place where the temperature changes dramatically that may cause thermal contraction.
Before making any adjustment, leave the projector lit for at least 45 minutes after its light
source is turned on. This allows he internal temperature of the projector to stabilize.

Adjusting the Zoom/Focus

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. See page 23.
Focus ring
27
Vertical shift
Max 0.55V
Height of projected image
Vertical shift
Max 0.15V
Height of projected image
Max 0.55V
Vertical shift
Normal projection position
1V
0.05H
Width of projected image
1V
Shift to Left
1H
0.05H
Shift to Right
Zoom ring

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