SC227 Projector Lens 0.85–1.37:1 for 1 Christie Model, Including C-WU2000L

SC227 is a short-throw lens for 0.96-inch panels (Christie), with a throw ratio of 0.85–1.37:1 and lens shift. It is compatible with 1 model from 1 model series. This article brings together the lens specifications, installation distances, model compatibility list, and replacement key points.

1. Lens Specifications

Lens shift is the key differentiator of this lens. Its 10% horizontal and 4% vertical shift ranges allow the projector to be installed off the screen centerline, then aligned with the image using lens shift without relying on keystone correction. Keystone correction comes at a cost—each adjustment step sacrifices some effective pixels and can blur text edges. In installation projects, never resort to keystone correction when lens shift can resolve the issue; maintaining image quality is essential.

2. Calculating Installation Distance from Throw Ratio

A throw ratio is the ratio of installation distance to image width. This lens is a zoom lens (0.85–1.37:1), so a given image size corresponds to a range of distances, and it can be focused at any point within that range during installation.

The distances above are clear distances from the front surface of the lens to the screen and do not account for ventilation or cable-routing space at the rear of the chassis. They are calculated for a 16:10 image; verify actual distances on site and according to the manual.

Image quality varies between the two ends of the zoom range: near the short-throw end, the image is brighter and the edges slightly softer; near the long-throw end, the edges are sharper and brightness is slightly lower. When 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—adjusting both variables at once makes precise alignment difficult.

3. Compatible Models (1 Model, Christie)

The following table is ordered from newest to oldest by model production date and includes each model's resolution, brightness, and standard lens zoom ratio, making it easy to identify the right option for project requirements.

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

Common Characteristics of These Models

The factory-standard lens for the 1 compatible model typically has a throw ratio within the 1.5~2.0 range. The 0.85–1.37:1 model in this article effectively shifts the focal range, enabling different image sizes at the same projection distance—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 range is adjusted.

4. Three Checks Before Replacement

• Make sure the panel and resolution match. This model is designed for 0.96-inch panels. Projectors with a different panel size or resolution may show differences in projection performance, so the safest approach is to verify the details against the projector nameplate before installation.
• Check the interface and locking mechanism. Interfaces are generally compatible within the same platform generation, but locking-clip positions vary between generations. If the image is skewed or the edges are soft after installation, the locking mechanism is usually not fully engaged rather than the lens itself being faulty.
• Allow for lens-shift margin during installation. The lens-shift range provides installation flexibility, but edge quality declines when it is pushed to the limit; in practice, keep actual use within 70% of the rated value.

For compatibility with a model not listed, the safest approach is to send us the chassis nameplate and a photo of the original lens for verification—platforms of the same generation often share interfaces, but ordering based on a similar model designation carries unnecessary risk.