Christie 108-322108-xx Zoom Lens Review: CP2210 Compatibility

Christie Genuine Lens 108-322108-xx Zoom is an OEM optical accessory for Christie engineering projectors. It is a long-throw (Long Throw) lens with a 2.40-3.90:1 throw ratio. The OEM compatibility list covers 1 model; before installation, simply verify the chassis model and panel size, with no need to make do with adapter rings. The value of an OEM lens lies not in the extra figures on a spec sheet, but in the fact that it is calibrated at the factory to the optical path and mount of that projector series: once fitted, the image circle, edge illumination, and focus travel are all at their design values, so there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

Brand	Christie (Christie)
Lens Model	108-322108-xx Zoom
Throw Ratio	2.40-3.90:1
Product Type	Long Throw (Long Throw)
Compatible Models	1 model
Warranty	12 months; after-sales service is available for damage not caused by user mishandling, based on the date on the shipping documents

The above specifications are subject to the official manufacturer specifications. For mechanical dimensions, flange focal distance, and mount type not shown in the specifications table, please verify them with us using the chassis model. Ordering directly based solely on a similar model carries the risk of an incompatible fit.

II. Calculating Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This OEM lens is a zoom lens (2.40-3.90:1), so each image size corresponds to a range of installation distances. Any position within this range can achieve proper focus after installation.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 5.16 – 8.38 m
120 inches	2.58 m	approx. 6.19 – 10.06 m
150 inches	3.22 m	approx. 7.74 – 12.58 m
200 inches	4.30 m	approx. 10.32 – 16.77 m

The distances above are net distances from the front of the lens to the screen and do not include clearance for rear chassis cooling and cable connections. They are calculated for a 16:10 frame; actual values are subject to on-site measurement and the official manufacturer manual.

Image quality differs at the two ends of the zoom range: the image is brighter and the edges slightly softer near the close end, while the edges are sharper and brightness slightly lower near the long end. If space allows, we recommend positioning the lens in the middle of the range. After installation, find the sharpest setting on the focus ring first, then fine-tune the lens shift.

III. Compatible Models (1 Model)

The following table is taken from the official OEM compatibility list. Brightness and resolution are populated from the model database; entries that cannot be obtained are marked with "—", with no assumptions made.

Model	Brightness	Resolution
CP2210	12000 lumens	2048x1080

To check whether a model outside the list is compatible, please send us photos of the chassis nameplate and the existing lens for verification. Projectors based on platforms of the same generation often share the same mount, but the risks of ordering based solely on a similar model number are not worth taking.

Throw Ratios by Model Series

The rated throw ratio varies when the same 108-322108-xx Zoom is used with the series listed below. Select the value according to the series of the actual projector.

Model Series	Throw Ratio
—	2.40-3.90:1

IV. Three Checks Before Replacement

• Confirm the chassis imaging chip and resolution.OEM lenses are designed for specific panel sizes. When the panel specifications differ, the image circle cannot cover the full image, resulting in vignetting or edge light loss after installation.
• Calculate the installation distance first.This lens has a rated throw ratio of 2.40-3.90:1. Use the table in Section 2 to match your venue dimensions. A fixed-focus lens offers no adjustment margin, and even a zoom lens requires 10–20 cm of clearance at both ends.
• Verify the mount and locking mechanism.The OEM lens is calibrated to the mount of that projector series. After installation, you must hear the lens lock securely into place. A skewed image or soft edges are usually caused by incomplete locking rather than a defect in the lens itself.

If you are unsure, take one photo of the chassis nameplate and one photo of the existing lens nameplate and send them to us. Verification against the actual hardware is the safest approach.