WD484 Projector Lens 0.35:1 for 4 Christie Models: C-WU1200L, C-WU1500L, C-WU730L, C-WU700L

WD484 is a short-throw lens for Christie projectors with 0.65/0.66/0.67-inch panels, featuring a 0.35:1 throw ratio. It is compatible with 4 projector models across 2 model series. This guide presents the lens specifications, installation distance, model compatibility list, and replacement considerations in one place.

1. Lens Specifications

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This lens has a fixed focus (0.35:1), so the installation distance varies linearly with the image size, leaving no adjustment margin. Accurate measurements are essential before installation.

The distances above are measured from the front face of the lens to the screen and exclude the space required for rear chassis ventilation and cable connections. They are calculated for a 16:10 image; actual distances are subject to on-site measurements and the manual.

3. Compatible Models (4 Models, Christie)

The table below is ordered by model production date, from newest to oldest. It lists the resolution, brightness, and zoom ratio of the standard lens supplied with each model, enabling quick selection based on project requirements.

The zoom ratio refers to the zoom factor of the factory-supplied standard lens for that model (upper limit ÷ lower limit of its throw-ratio range), not the zoom range of the lens featured in this article.

Common Features of These Models

The factory-supplied standard lenses for these four models generally have throw ratios in the 1.22-1.52：1 range. The 0.35:1 model featured here effectively changes the focal length, allowing a different image size at the same projection distance—the direct reason for replacing the lens. It also retains full shift capability, so the image can still be aligned after the focal length is changed.

4. Three Checks Before Replacement

• The panel size and resolution must match. This model is compatible with 0.67-inch panels. Projectors with a different panel size or resolution may show differences in projection performance. For the most reliable match, verify the specifications against the nameplate on the projector chassis before installation.
• Mounting interface and locking mechanism. Interfaces are generally compatible across platforms of the same generation, but the position of the locking latch varies between generations. If the image appears skewed or its edges are not sharp after installation, the lock usually has not fully engaged; this is typically not a problem with the lens itself.
• A fixed-focus lens has no zoom adjustment margin. Image size can only be changed by moving the projector, so the venue dimensions must be measured accurately in advance, with an extra 10–20 cm allowed at both ends.

For models outside the list, the safest approach is to send us photos of the chassis nameplate and the original lens for verification—platforms of the same generation often share the same interface, but it is not worth the risk of ordering based on a similar model designation.