Setup Procedures; Adjust Lens Focus - Christie Matrix StIM-WQ User Manual

Setup Procedures

Adjust Lens Focus

Failure to properly adjust lens focus results in an image that is not uniformly focused and
contains geometric distortion.
This section describes best practices for lens focus adjustment of the 0.68:1 WQXGA lens 
(P/N: 125-103105-xx), the 0.80:1 WQXGA lens (PN: 125-105107-xx), and the 1.28 - 1.71:1 WQXGA
lens (P/N: 125-101103-xx).
1. Loosen the locking screw and the focusing screw.
2. Adjust the focusing screw for best focus in the image center.
3. 0.68:1 Lens Only: Loosen the field curvature locking screw and adjust the field curvature
focusing ring to sharpen the image corners.
4. Adjust the focus screw for best overall screen focus.
5. Although it is not necessary, you may want to retighten the main locking screw. Use a maximum
of 4 in.-lbs (0.45 Nm) to tighten.
Field curvature
focusing ring
Matrix StIM™ WQ/SIM WQ User Manual
020-100883-01 Rev. 2 (06-2013)
Locking screw
Setup Procedures
Focusing screw
Field curvature
locking screw
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