Installation
34
Vidikron Vision Model 65/Model 75 Installation/Operation Manual
3.11
Installing and Adjusting
the CineWide Anamorphic
Lens
If you are installing a CineWide-equipped projector, proceed as follows to install and adjust
the anamorphic lens.
Vidikron offers two types of anamorphic lenses for its CineWide projectors:
prismatic
and
cylindrical
.
• The prismatic lens compresses the height of the image (as opposed to stretching the
width) to achieve a 2.35:1 aspect ratio with a 1.7
8
:1 display device.
• The cylindrical anamorphic lens has a larger aperture than the prismatic lens. It stretches
the width of the image to achieve a 2.35:1 aspect ratio with a 1.7
8
:1 display device. Two,
cylindrical anamorphic lens options are available: Rainier II and McKinley. Although they
differ in size and throw distance range (refer to Table 3-3), the installation procedure for
both lenses is similar.
The Vision 65/CineWide and Vision 75/CineWide are available with either a prismatic or a
cylindrical anamorphic lens; the Vision 65/CineWide with AutoScope and Vision 75/CineWide
with AutoScope always use a cylindrical lens.
If you are installing a CineWide projector with a prismatic lens, refer to
Whitney (Prismatic)
Anamorphic Lens Installation and Adjustment
on page 40. If you are installing a CineWide
projector with a cylindrical lens, continue with the next section.
It is extremely important that the primary lens is properly adjusted
before you install the anamorphic lens. Ensure that the image from
the primary lens is perfectly centered on the screen.
Note
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