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Projector installation
English-29
Moving the lens vertically
The distance of vertical lens movement is 12% of the screen height directions (The offset range is
about 63% to 75%). For instance, if you are using a 2.15m × 1.35m (100”) screen, you will be able to
move the picture upwards no more than 13.5cm(10%) and downwards no more than 2.7cm(2%) from
default position. (please conrm the default position in Page 97 ).
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 2.5% of the screen width in both directions. For instance,
if you are using a 2.15m × 1.35m (100”) screen, you will be able to move the picture left or right by no
more than 5.4cm.
This illustration shows normal horizontal 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.
Note: Although the lens shift position can be moved beyond the specication, please use it in the
position within the specication. When used at a position outside specications, the corner
of the screen becomes shade or color unevenness becomes large, and sufcient optical
performance can not be obtained.
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