BenQ LK935 User Manual page 15

Shifting the projection lens
The lens shift control provides flexibility for installing your projector. It allows the projector to
be positioned off the center of the screen.
The lens shift is expressed as a percentage of the projected image height or width. You can
turn the knobs on the projector to shift the projection lens in any direction within the allowable
range depending on your desired image position.
Desk-front
projection
Ceiling mount-front
projection
V: Height of projected image
H: Width of projected image
To reach the highest or lowest projection position:
1. Turn (Up/Down).
2. When you feel it is reaching the limit, turn
(Left/Right) to the left or right and turn
again.
3. Repeat the step above until finding the suitable position you need.
• If you hear a "clicking sound" during the adjustment, it means that the knob is past its adjustment limit.
Please stop adjusting it, in order to avoid any unexpected damage, and turn the knob in the opposite
direction, at least to one step before the click.
• If you can't turn it back, please press and turn the knob back at same time.
Vertical shift
Max. 0.6V
1V
Max. 0.6V
Vertical shift
Max. 0.6V
1V
Max. 0.6V
Vertical shift
Effective projection position
Max.
0.23H 1H
Width of projected image
Shift to
left
Positioning your projector
Max.
0.23H
Shift to
right
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