Christie 108-319104-xx Fixed Standard Throw Lens Guide for CP2210

Christie factory-original lens 108-319104-xx Fixed is an OEM optical accessory for Christie professional projectors. It is a standard-throw lens (Standard Throw) with a throw ratio of 1.05:1. The factory compatibility list covers 1 model. Before installation, simply verify the projector model and panel size; no adapter rings or workaround solutions are needed. The value of a factory-original lens lies not in the additional figures in its specifications, but in the fact that it is calibrated at the factory to the optical path and lens mount of that projector series. Once installed, the image circle, edge illumination, and focusing travel are all within their design values, so there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

The above specifications are subject to the factory specifications. Mechanical dimensions, flange distance, and mount type are not listed in the specifications table. Please contact us with the projector model so we can verify these details; ordering solely based on a similar model carries the risk of an incompatible fit.

II. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This factory-original lens has a fixed focal length (1.05:1), so the installation distance changes linearly with image size and offers no adjustment margin. Accurate measurements are essential before installation.

These are clear distances from the lens face to the screen and do not include space behind the projector for cooling and cable connections. The distances are calculated for a 16:10 image; actual on-site measurements and the factory manual take precedence.

III. Compatible Models (1 Projector)

The following table is taken from the factory compatibility list. Brightness and resolution are populated from the model database; values that cannot be obtained are shown as "—" and are not estimated.

To verify compatibility with a model not listed here, please send us photos of the projector nameplate and the existing lens. Platforms from the same generation often share the same mount, but ordering solely because a model looks similar is not worth the risk.

Throw Ratios by Model Series

The nominal throw ratio varies when the same 108-319104-xx Fixed is used with the series listed below. Determine the correct value from the series of the actual projector.

IV. Three Checks Before Replacement

• Confirm the projector's imaging chip and resolution. Factory-original lenses are designed for a specific panel size. If the panel specification differs, the image circle cannot cover the full image, resulting in vignetting or light loss at the edges.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.05:1; use the table in Section 2 to calculate the distance for your venue. A fixed-focal-length lens offers no adjustment margin; even with a zoom lens, allow 10–20 cm at both ends of the range.
• Verify the mount and locking mechanism. Factory-original lenses are calibrated to the lens mount used on that projector series. After installation, you must hear the lens click into the locked position. A skewed image or soft edges are usually caused by incomplete locking, not by the lens itself.

If you are unsure, take one photo of the projector nameplate and one of the existing lens label, then send them to us. Verification against the actual hardware is the most reliable approach.