Christie 108-350109-xx Zoom Standard Throw Lens for CP2210: Compatibility Analysis

Christie Genuine Lens 108-350109-xx Zoom is an original optical accessory for Christie engineering projectors, in the standard throw (Standard Throw) category, with a throw ratio of 1.20-1.75:1. The factory compatibility list covers 1 model; before installation, simply verify the chassis model and panel size — no adapter rings or makeshift solutions are needed. The real value of an original factory lens does not lie in a few extra rows of specifications, but in the fact that it is calibrated at the factory to the optical path and lens mount of that model series: once mounted, the image circle, edge uniformity, and focus travel are all at their designed values, so there is no need to compensate for image quality with keystone correction.

I. Lens Specifications

The above specifications are subject to the original factory specifications. For mechanical dimensions, flange distance, and mount type that are not shown in the specifications table, please check with us using your chassis model; ordering directly based on a similar model carries the risk of the lens not fitting.

II. Converting Throw Ratio into Installation Distance

The throw ratio is the ratio of installation distance to image width. This original factory lens is a zoom lens (1.20-1.75:1), so a given image size corresponds to a range of distances, and any position within that range will achieve proper focus during installation.

The above is the clear distance from the front element of the lens to the screen, excluding the clearance required for rear heat dissipation and cabling. Calculated for a 16:10 aspect ratio; in practice, on-site measurements and the factory manual take precedence.

Image quality differs between the two ends of the zoom range: near the short end the image is brighter with slightly softer edges; near the long end the edges are crisper with slightly lower brightness. Where the venue allows, it is recommended to place the unit in the middle of the range; after mounting, first find the sharpest position on the focus ring, then fine-tune the lens shift.

III. Compatible Models (1 unit)

The table below is taken from the factory compatibility list; brightness and resolution are backfilled from the model database, and entries that cannot be retrieved are marked with "—" rather than estimated.

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

Throw Ratios Across Model Series

The nominal throw ratio varies depending on the series on which the same 108-350109-xx Zoom is installed, so selection must be based on the series of the actual chassis in use.

IV. Three Checks Before Replacement

• Confirm the chassis chip and resolution.Original factory lenses are designed for a specific panel size; when the panel specification differs, the image circle cannot cover the full panel, resulting in vignetting or edge light loss after mounting.
• Calculate the installation distance first.This lens has a nominal throw ratio of 1.20-1.75:1; apply the table in Section II to the dimensions of your own venue. A fixed-focus lens offers no margin, and a zoom lens still requires 10–20 cm of allowance at both ends.
• Verify the mount and locking mechanism.Original factory lenses are calibrated to the mount of that model series, and you must hear the lens click into the locked position after mounting; a skewed image or soft edges are usually caused by incomplete locking rather than by a problem with the lens itself.

If you are unsure, take one photo of the chassis nameplate and one photo of the existing lens nameplate and send them to us — verifying against the physical items is the most reliable approach.