Christie 144-108100-01 HB Zoom Long-Throw Lens: 11 Compatible Models

Christie Original Lens 144-108100-01 HB Zoom is a genuine optical accessory for Christie engineering projectors. It is a long throw (Long Throw) lens with a 3.89-5.43:1 throw ratio. The factory compatibility list covers 11 models; before installation, simply verify the projector model and panel size, with no need to resort to adapter rings. The value of an original lens lies not in the extra figures it adds to a specification sheet, but in its factory calibration to the optical path and mount of that projector series: the image circle, edge illumination, and focusing travel all match the design values, eliminating the need to compensate for image quality with keystone correction.

I. Lens Specifications

The above specifications are subject to the factory specifications. For mechanical dimensions, flange distance, and mount type not listed in the specifications table, please contact us with your projector model. Ordering solely on the basis of a similar model carries the risk of the lens not fitting.

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This genuine lens is a zoom lens (3.89-5.43:1), so a given image size corresponds to a range of installation distances. The lens can focus at any distance within this range.

These figures represent the clear distance from the front of the lens to the screen and do not include space behind the projector for cooling or cabling. They are calculated for a 16:10 image; actual distances should be confirmed through on-site measurements and the factory manual.

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

III. Compatible Models (11 Models)

The following table is taken from the factory compatibility list. Brightness and resolution are populated from the model database; unavailable specifications are marked “—” without speculation.

To confirm whether a model not on the list is compatible, send us photos of the projector nameplate and the existing lens. Platforms of the same generation often share the same mount, but the risk of ordering based solely on a similar model is not worth taking.

Throw Ratio by Model Series

The nominal throw ratio may differ when the same 144-108100-01 HB Zoom is installed on the series listed below. Select the value for the series of the actual projector.

IV. Three Checks Before Replacement

• Confirm the projector imaging chip and resolution. 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 edge light loss.
• Calculate the installation distance first. This lens has a rated throw ratio of 3.89-5.43:1. Use the table in Section II to calculate the distance for your venue. A prime 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. Original lenses are calibrated to the mount of the corresponding projector series, and the lock must audibly engage after installation. A skewed image and soft edges are usually caused by an incompletely engaged lock, not by a faulty lens.

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