Adjust Offset - Christie CP2000-XB Setup Manual

2.11.1 Adjust Offset

Project an image with the primary lens only. Always
adjust offset before boresight. Important! Ensure
the correct lens is selected in the Advanced: Lens
menu before calibration to ensure you will remain
within the applicable boundary of the installed lens.
NOTE: When adjusting the Focus, Offset, and
Zoom, you may experience a slight delay in the
response rate of the lens upon selecting the buttons.
1. Ensure Auto ILS is selected from the Main:
Lens menu. NOTE: Enabling Auto ILS will
over-write the pre-defined settings for this
channel. To perform a temporary lens
adjustment, uncheck Auto ILS and adjust the
lens by clicking the necessary buttons or
manually adjusting the focus, offset, and/or zoom
knobs. All temporary adjustments will be lost when Auto ILS is selected again or if the channel changes.
2. Using a DC2K Framing test pattern (DC2K Framing.tga is recommended), adjust the Offset by clicking
the up/down/left/right buttons on the Main: Lens menu (Figure 2-35), as necessary to display a square
image on the screen. NOTES: 1) You can also hold the buttons down for continuous movement. 2) For
best optical performance, make sure to minimize keystone error by using offset more than aiming to center
the image in off axis installations. 3) For best results, avoid extreme tilts or offsets. Corner vignettes on a
white test pattern indicates extreme offset that should be avoided using mechanical alignment.
The maximum vertical offset is shown in Figure 2-36 (bottom illustration). NOTES: 1) Horizontal offset is
just a few dozen pixels, resulting in a maximum of 52% of the image displayed on one side or the other of the
lens. 2) Maximum offsets are slightly less when offsetting in both directions (H and V) at once.
CP2000-XB Setup Guide
020-100250-02 Rev. 1 (06-2009)
Figure 2-36 Vertical Offset Range
Section 2: Installation & Setup
Figure 2-35 Intelligent Lens System
2-25