Christie 118-100114-xx Zoom Telephoto Lens: Compatible with 20 Models

Christie Original Lens 118-100114-xx Zoom is an original optical accessory for Christie engineering projectors, belonging to the long throw category with a throw ratio of 2.60-4.10:1. The factory compatibility list covers 20 models — before installation, simply verify the chassis model and panel size, with no need to make do with adapter rings. The value of an original factory lens lies not in the extra rows of numbers on a spec sheet, but in the fact that it is calibrated at the factory to the optical path and mount of that chassis series: once fitted, the image circle, edge illumination, and focus travel are all design values, so there is no need to use keystone correction to patch up image quality.

I. Lens Specifications

The above specifications are subject to the original manufacturer's specifications. For mechanical dimensions, flange distance, and mount type that are not shown in the specification table, please check with us based on the chassis model — ordering directly on the basis of a similar model carries the risk that the lens will not fit.

II. Converting Throw Ratio into Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (2.60-4.10:1), so a given image size corresponds to a range of distances; as long as it is installed within that range, it can achieve proper focus.

The above is the net distance from the front surface of the lens to the screen, without accounting for rear chassis cooling and cabling space. Figures are calculated on a 16:10 aspect ratio; in practice, on-site measurement and the original manufacturer's manual shall prevail.

Image performance differs at the two ends of the zoom range: near the close end the image is brighter and the edges are slightly softer; near the far end the edges are sharper and the brightness drops slightly. Where the venue allows, aim for the middle of the range; after installation, first find the sharpest position on the focus ring, then fine-tune the lens shift.

III. Compatible Models (20 units)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are backfilled from the model database and marked as "—" where the data cannot be obtained, with no speculation.

For models not on the list, please send us the chassis nameplate and a photo of the existing lens so we can verify compatibility — platforms of the same generation often share the same mount, but ordering based on a similar model name is not worth the risk.

Throw Ratio by Model Series

The nominal throw ratio of the same 118-100114-xx Zoom varies across the series listed below, so select the value according to the series your actual chassis belongs to.

IV. Three Things to Confirm Before Replacement

• Confirm the chassis chip and resolution. Original lenses are designed for a specific panel size; when the panel specification differs, the image circle cannot cover the full image, and vignetting or edge light loss will result after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 2.60-4.10:1; apply it to your venue dimensions using the table in Section II. A fixed lens leaves no margin, and even a zoom needs 10–20 cm of leeway at both ends.
• Verify the mount and locking mechanism. Original lenses are calibrated to the mount of that chassis series, and after installation you must hear the lock engage fully; a skewed image or soft edges are usually caused by an incompletely locked mount, not by the lens itself.

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