Epson 5350 - EMP SVGA LCD Projector, Руководство пользователя

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2 • Using the Projector
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When projecting from the ceiling, align the lens as closely as possible
with the top of your screen:
Using the Keystone Feature
In circumstances where the lens cannot be properly aligned, use the
projector’s Keystone function to help maintain optimum screen
geometry. This feature allows you to correct up to a
±
20
°
tilt,
maintaining an aspect ratio of 4:3. Press the Keystone button on the
control panel to increase or decrease the image adjustment. Using the
ELP Link IV software, you can correct up to a ± 30° tilt. For more
information, refer to Chapter 3.