Digital Projection E-Vision Laser 15000 Series
Appendix D: Positioning the image
Appendix D: Positioning the image
See Lens control on page 54 for
more information on shifting the
lens.
Whenever possible, position the
projector so that the lens is
centered for the highest quality
image
The normal position for the projector is at the centre of the screen. However, you can set the projector above or below the centre, or to one side, and adjust the
image using the
Lens shift
feature (known as
rising and falling front
) to maintain a geometrically correct image.
Combined shift is reduced
Full horizontal or vertical shift
Any single adjustment outside the
ranges specified on the following
page may result in an
unacceptable level of distortion,
particularly at the corners of the
image, due to the image passing
through the periphery of the lens
optics.
If the lens is to be shifted in two
directions combined, the
maximum range without distortion
will be somewhat less, as can be
seen in the illustrations.
Rev B April 2021
page 120
Reference Guide
Notes
