Christie 140-109101-01 Zoom Standard Throw Lens

Christie Original Lens 140-109101-01 Zoom is an OEM optical accessory for Christie professional projectors. It is a standard-throw lens (Standard Throw) with a throw ratio of 1.44-1.80:1. The OEM compatibility list covers 4 models. Before installation, simply verify the projector model and panel size; there is no need to improvise with adapter rings. The value of an OEM lens lies not in the extra rows in the specifications table, but in the fact that it is factory-calibrated 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 there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

The above specifications are subject to the OEM specifications. For mechanical dimensions, flange distance, and mount type not shown in the specifications table, please contact us with the projector model for verification. Ordering solely on the basis of a similar model carries a risk of incompatibility.

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of installation distance to image width. This OEM lens is a zoom lens (1.44-1.80:1), so a given image size corresponds to a range of distances, and the lens can focus at any position within that range.

The distances above are clear distances from the front surface of the lens to the screen and do not include clearance at the rear of the projector for cooling and cable connections. They are calculated for a 16:10 image; in practice, on-site measurements and the OEM manual take precedence.

Image quality differs at the two ends of the zoom range: toward the short-throw end, the image is brighter and the edges are slightly softer; toward the long-throw end, the edges are sharper and brightness is slightly lower. If site conditions allow, 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 (4 Models)

The table below is taken from the OEM compatibility list. Brightness and resolution are populated from the model database; unavailable values are shown as “—” and are not estimated.

For compatibility with a model not on the list, please send us a photo of the projector nameplate and the existing lens for verification. Same-generation platforms often share a lens mount, but ordering based only on a similar model name is not worth the risk.

Throw Ratio by Projector Series

The nominal throw ratio of the same 140-109101-01 Zoom varies by projector series. Use the value for the series of the actual projector when selecting a lens.

IV. Three Checks Before Replacement

• Confirm the projector panel and resolution. OEM 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 light loss at the edges.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.44-1.80:1. Use the table in Section II to calculate the distance for your venue. A fixed-focus lens has no adjustment margin; even a zoom lens needs 10–20 cm extra at both ends.
• Verify the mount and locking mechanism. The OEM lens is calibrated for the lens mount of that projector series and must audibly click into the locked position after installation. A skewed image or soft edges usually indicate that the lens is not fully locked, rather than a problem with the lens itself.

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