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20
Installation of the Projector
Horizontal and vertical lens shift
In addition to using the adjustable feet to adjust projection angle, you can also use the Lens Shift
function to adjust the projected image.
Moving the lens vertically
The distance of vertical lens movement is +100% , -50% of half the screen height in both directions.
For instance, if you are using a 80" × 50" screen, you will be able to move the image upwards no more
than 25'' or downwards no more than 12.5''.
Range of vertical
lens shift adjustment
Range of vertical
lens shift
adjustment
This illustration shows normal vertical
lens shift without the use of special
specication lens or projector.
Note: Please make sure the center of lens is rectangular to the center of the screen.
Moving the lens horizontally
The distance of horizontal lens movement is 20% of half the screen width in both directions. For
instance, if you are using a 80" × 50" screen, you will be able to move the image left or right by no
more than 8".
Range of
horizontal
lens shift
adjustment
Range of
horizontal
lens shift
adjustment
This illustration shows normal
horizontal lens shift without the
use of special specication lens or
projector.
Note: when the lens is in the neutral
position (i.e. without horizontal
or vertical shift), the center of the
projection should be aligned with
the center of the screen.
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