Adjust Offset; Adjust Offset With An Ils; Adjust Left And Right Boresight - Christie CP2230 Setup Manual

Adjust the Image
4.4

Adjust Offset

Project an image with the primary lens. Always
adjust offset before boresight.
Select a framing test pattern and then adjust the
horizontal and vertical offset to display a square
image on the screen with minimal cinema
projector aiming error. (Figure 4-1)
NOTES: 1) For the best optical performance
and minimize keystone error, use offset and not
aiming to center the image in off axis
installations. 2) Avoid extreme tilts or offsets.
Corner vignettes on a white test pattern indicate
extreme offset that should be avoided using
mechanical alignment.
4.5

Adjust Offset with an ILS

Project an image with the primary lens. Always
adjust offset before boresight. Ensure the correct
lens is selected in the Advanced Setup: Lens
Adjust window before calibration to ensure you
remain within the applicable boundary of the installed lens.
1. Tap Menu > Advanced Setup > Lens Setup.
2. Tap Enable Automatic ILS. Enabling Automatic ILS overwrites the pre-defined settings for the channel.
3. Tap the Test Patterns icon and select a framing test pattern.
4. Tap Menu > Advanced Setup > ILS File Setup.
5. Tap the directional arrows in the Offset area. For best optical performance, make sure to minimize
keystone error by using offset more than aiming to center the image in off axis installations. Avoid extreme
tilts or offsets. Corner vignettes on a white test pattern indicates extreme offset that should be avoided
using mechanical alignment.
4.6

Adjust Left and Right Boresight

When performing these adjustments the goal is to balance the tilt of the lens mount to compensate for screen to
cinema projector tilt, but also to precisely maintain the original factory settings of the lens mount axial
position.
1. Loosen the horizontal hold screw.
2. Extend the lens focus completely.
4-2
Horizontal
Boresight
Bolt
HORIZONTAL
OFFSET
Figure 4-1 Standard Lens Mount
VERTICAL
OFFSET
Anchor
Bolt
Lock/Unlock
FOCUS
Vertical
Boresight
Bolt
CP2230 Setup Guide
020-100515-04 Rev. 1 (05-2014)
Lens