WD48E Projector Lens 0.35:1 for Christie 4K860-iS, DWU960-iS, DWU860-iS, DWU760-iS

WD48E is a short-throw lens for the 0.65/0.66/0.67 panel group (Christie), with a 0.35:1 throw ratio. It is compatible with 4 models across 1 model series. This guide brings together the lens specifications, installation distances, model compatibility list, and replacement considerations.

1. Lens Specifications

2. Installation Distance Based on Throw Ratio

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

The values above represent the clear distance from the front face of the lens to the screen and do not include clearance behind the chassis for heat dissipation and cable connections. They are calculated for a 16:10 image; actual values 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 each model's resolution, brightness, and zoom ratio for the original lens, helping you quickly identify the right option for your project requirements.

The zoom ratio is the zoom factor of the model's original standard lens (upper limit ÷ lower limit of the native throw-ratio range), not the zoom range of the lens featured in this article.

Common Features of These Models

The original standard lenses for the 4 models mostly have throw ratios in the 1.25-2.0:1 range. The 0.35:1 ratio of the model featured here effectively adjusts the focal length, allowing the same projection distance to produce different image sizes—this is the direct reason for replacing the lens. It also retains full lens-shift capability, so the image can still be aligned after the focal length is changed.

4. Three Checks Before Replacement

• Ensure the panel and resolution match. This model is compatible with 0.67 inches panels. Projectors with a different panel size or resolution may show some variation in projection performance, so the safest approach is to check the chassis nameplate before installation.
• Check the interface and locking mechanism. Interfaces are generally interchangeable within the same platform generation, but the locking-tab position varies between generations. If the image appears skewed or the edges are unfocused after installation, the lock is usually not fully engaged rather than the lens itself being faulty.
• A fixed-focus lens has no zoom adjustment range. Image size can only be changed by moving the projector. The venue dimensions must be measured accurately in advance, allowing an extra 10–20 cm at both ends of the range.

For models not on the list, the safest way to confirm compatibility is to send us photos of the chassis nameplate and the original lens. Same-generation platforms often share the same lens interface, but ordering based solely on a similar model designation is not worth the risk.