Calculating The Lens Offset - Christie DWU760-iS Installation And Setup Manual

Calculating the lens offset

Adjust the lens offset (shift) to align the image on the screen with half image size. To ensure
optimal projector and lens performance, Christie recommends keeping the offset (shift) values
within the ranges specified below.
• The vertical image offset (shift) range for the projector is up to +/-110% (WUXGA).
• The horizontal image offset (shift) range for the projector is up to +/-50% (WUXGA).
• The method for calculating lens offset complies with industry standards, with which the image
offset is calculated by half image size. For example for vertical lens offset:
• At 0% offset (or on axis), the center of the image is on the lens center, so half of the
image appears above and half appears below the lens center.
• At +100% offset, all of the image appears above the lens center.
The following show the vertical and horizontal image offsets for the Inspire Series WUXGA
projectors:
• Vertical image offset: 0%
• WUXGA Vertical image offset: +/-110%
Inspire Series Installation and Setup Guide
020-001933-02 Rev. 1 (12-2022)
Copyright ©2022 Christie Digital Systems USA, Inc. All rights reserved.
If printed, please recycle this document after use.
Lens center
Lens center
Installation and setup
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