Christie 140-107109-01 Zoom Long Throw Lens: Compatible with 24 Models

Christie Genuine Lens 140-107109-01 Zoom is an original optical accessory for Christie engineering projectors. It features a Long Throw design with a throw ratio of 2.90-5.50:1. The factory compatibility list covers 24 models. Before installation, simply verify the projector model and panel size—there is no need to improvise with an adapter ring. The value of a genuine lens lies not in the extra specifications, but in the fact that it is calibrated from the factory to the optical path and mount of the corresponding projector series. Once installed, the image circle, edge illumination, and focusing travel are all set to their design values, eliminating the need for keystone correction to compensate for image quality.

I. Lens Specifications

These specifications are subject to the original manufacturer specifications. For mechanical dimensions, flange distance, and mount type not listed in the specifications table, please contact us with the exact projector model. Placing an order based solely on a similar model carries the risk of incompatibility.

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This genuine zoom lens has a throw ratio of 2.90-5.50:1, so the same image size corresponds to a range of installation distances. The lens can focus at any position within this range.

These figures represent the clear distance from the front of the lens to the screen and do not include clearance for rear housing ventilation and cable connections. They are calculated for a 16:10 image format; actual values are subject to on-site measurements and the original manufacturer manual.

Image quality varies at the two ends of the zoom range. Near the short end, the image is brighter and the edges are slightly softer; near the long end, the edges are sharper and brightness decreases slightly. Where the venue allows, use the middle of the range. After installation, adjust the focus ring to the sharpest position, then fine-tune the lens shift.

III. Compatible Models (24 Models)

The following table is taken from the factory compatibility list. Brightness and resolution are populated from the model database; entries marked “—” are unavailable, and no values have been estimated.

To verify whether a model not listed here is compatible, send us photographs of the projector nameplate and the existing lens for confirmation—projectors of the same generation often share the same mount, but placing an order based solely on a similar model number is not worth the risk.

Throw Ratios by Model Series

The nominal throw ratio varies when the same 140-107109-01 Zoom lens is used with the following series. Select the value according to the actual projector series.

IV. Three Checks Before Replacement

• Confirm the projector imaging chip and resolution.Original lenses are designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the full panel, resulting in vignetting or edge light loss after installation.
• Calculate the installation distance first.This lens has a nominal throw ratio of 2.90-5.50:1. Use the table in Section II to calculate the distance for your venue. A fixed-focus lens offers no adjustment margin, and even a zoom lens should allow an additional 10–20 cm at both ends.
• Verify the mount and locking mechanism.Original lenses are calibrated to the mount of the corresponding projector series. After installation, you must hear the lens lock into place. A skewed image or soft edges are usually caused by incomplete locking rather than a problem with the lens itself.

If you are unsure, photograph both the projector nameplate and the existing lens nameplate and send them to us. Verification against the actual equipment is the most reliable approach.