Shifting the projection lens vertically

The vertical lens shift control provides flexibility for installing your projector. It allows the projector to be positioned slightly above or below the top level of the projected images.

The lens shift (offset) is expressed as a percentage of the projected image height. It is measured as an offset from the projected image's vertical center. You can use the lever to shift the projection lens upwards or downwards within the allowable range depending on your desired image position.

To use the lens shift lever:

1.Release the lever by turning it counterclockwise.

2.Move the lever to adjust the projected image position.

3.Lock the lever by turning it clockwise.

When the screen position is fixed

Screen

UP

 

SHIFT

DOWN

 

LENS

100%

30%

10%

Projector

When the projector position is fixed

130%

120%

110%

UP

 

SHIFT

DOWN

 

LENS

• Please do not over-tighten the lever.

Lens shift adjustment will not result in a degraded picture quality. In the unlikely event that the image distortion is produced, see "Adjusting the projected image" on page 29 for details.

20 Positioning your projector

Page 20
Image 20
BenQ W1080ST, W1070 user manual Shifting the projection lens vertically, To use the lens shift lever