Christie 144-109101-XX HB Zoom Long-Throw Lens Guide: 7 Compatible Models

Christie Original Lens 144-109101-XX HB Zoom is an original optical accessory for Christie professional projectors. It is a long-throw (Long Throw) lens with a throw ratio of 4.96-7.69:1. The official compatibility list covers 7 models. Before installation, simply verify the projector model and panel size; no adapter ring is needed. The value of an original lens lies not in the extra specifications, but in its factory calibration to the optical path and lens mount of that projector series. Once installed, the image circle, edge illumination, and focus travel are all at their designed values, so keystone correction is unnecessary to compensate for image quality.

1. Lens Specifications

Brand	Christie (Christie)
Lens Model	144-109101-XX HB Zoom
Throw Ratio	4.96-7.69:1
Product Type	Long Throw
Compatible Models	7 models
Warranty	12 months; after-sales service applies to damage not caused by human error, based on the date shown on the dispatch invoice

The above specifications are subject to the manufacturer's official specifications. For mechanical dimensions, flange distance, and mount type that are not listed in the specifications table, please contact us with your projector model. Ordering directly based on a similar model carries the risk that the lens will not fit.

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This original lens has a zoom range of 4.96-7.69:1, so each image size corresponds to a range of installation distances. The lens can focus at any position within that range.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 10.66 – 16.53 m
120 inches	2.58 m	approx. 12.80 – 19.84 m
150 inches	3.22 m	approx. 16.00 – 24.80 m
200 inches	4.30 m	approx. 21.33 – 33.07 m

The distances above are the net distance from the front surface of the lens to the screen and do not include space behind the projector for heat dissipation and cabling. These values are calculated for a 16:10 image; actual distances should be verified through on-site measurements and the manufacturer's manual.

Image quality differs at the two zoom extremes: toward the shorter end, the image is brighter and the edges are slightly softer; toward the longer end, the edges are sharper and the brightness is slightly lower. When the venue allows, placing the lens near the middle of the range is recommended. After installation, find the sharpest setting using the focus ring, and then fine-tune the lens shift.

3. Compatible Models (7 Models)

The table below is taken from the official compatibility list. Brightness and resolution values are populated from the model database; unavailable values are shown as "—" and have not been estimated.

Model	Brightness	Resolution
Boxer 2K20	—	—
Boxer 2K25	—	—
Boxer 2K30	—	—
Boxer 30	—	—
Boxer 4K20	—	—
Boxer 4K30	—	—
Mirage 304K	—	—

To determine whether a model outside this list is compatible, send us a photo of the projector nameplate and the existing lens. Platforms from the same generation often share the same lens mount, but ordering based solely on a similar model name is not worth the risk.

Throw Ratio by Projector Series

The nominal throw ratio differs when the same 144-109101-XX HB Zoom lens is installed on the following projector series. Select the value based on the series of the actual projector.

Projector Series	Throw Ratio
—	4.96-7.69:1

4. Three Checks Before Replacement

• Check the projector chip and resolution. Original lenses are designed for specific panel sizes. If the panel specifications differ, the image circle cannot cover the full panel, resulting in vignetting or edge illumination loss.
• Calculate the installation distance first. This lens has a nominal throw ratio of 4.96-7.69:1. Use the table in Section 2 to determine the distance for your venue. A fixed-focus lens provides no adjustment margin, and a zoom lens still requires 10–20 cm of extra space at both ends of the range.
• Verify the mount and locking mechanism. The original lens is calibrated to the lens mount of that projector series. You must hear it lock into place after installation. A skewed image and soft edges are usually caused by incomplete locking rather than a problem with the lens itself.

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