Anamorphic Lens; Wide Converter Lens - Christie CP4230 Service Manual

wide converter lens (WCL). The drive and control electronics package for this motorized lens mount
communicates with and is controlled by the projector over a 9-pin subminiature D cable that connects to the
User I/O panel.

1.6.3 Anamorphic Lens

The optional anamorphic lens (1.25x) can produce 2.39:1 "scope" images when used in combination with the
primary lens. It is secured into a separate lens mount located adjacent to the lens opening and swings into place
in front of the primary lens for scope images. To install the anamorphic lens mount and lens option, refer to the
instructions provided with the anamorphic lens mount kit. The anamorphic lens horizontally spreads the image
back into its wider 2.39:1 scope image and is typically used in side-masking theatres and on larger screens.
When using an anamorphic lens the incoming data must be scaled up to a higher vertical resolution in order to
work correctly.

1.6.4 Wide Converter Lens

In some applications a wide converter lens (WCL) can be used to accommodate changes between flat and
"scope" cinema displays. The wide converter lens "zooms" the image from flat to scope image formats. It
magnifies a scope-formatted 2.39:1 image so it fills the screen without the sue of an anamorphic lens.
CP4230 Service Manual
020-100622-04 Rev. 1 (05-2016)
Section 1: Introduction
1-7