WK200 Projector Lens 0.46:1 for 2 Christie Models, Including 4K7-HS and 4K10-HS

WK200 is a short-throw lens for the 0.65/0.66/0.67 panel group (Christie), with a 0.46:1 throw ratio and lens shift. It is compatible with 2 projector models across 1 model series. This article compiles the lens specifications, installation distances, model compatibility list, and replacement notes in one place.

1. Lens Specifications

Lens shift is the key differentiator of this lens. A shift range of 85.2% horizontal and 39.6% vertical means the projector can be installed off the screen's central axis and the image can be brought back into position through lens shift, without resorting to keystone correction. Keystone correction comes at a cost—every step of correction sacrifices some effective pixels and makes text edges blur. In engineering installations, never use keystone correction when lens shift can solve the problem; this is the baseline for image quality.

2. Installation Distance Calculated from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This lens has a fixed focal length (0.46:1); the installation distance varies linearly with image size and offers no adjustment margin, so accurate measurements must be taken before installation.

The figures above are the net distance from the lens front to the screen and do not include space for rear cooling and cabling of the projector. They are calculated for a 16:10 image; actual values are subject to on-site measurement and the user manual.

3. Compatible Models (2 Models, Christie)

The table below is arranged from newest to oldest by model production date and includes the resolution, brightness, and zoom ratio of the original lens for each model, making it easy to locate the right model for project requirements.

Common Features of These Models

The throw ratios of the original standard lenses for these 2 models mostly center on Depends on the lens. The 0.46:1 ratio of the model in this article is equivalent to an adjustment of the focal length range, so the same projection distance can produce a different image size—which is precisely the direct reason for replacing the lens; meanwhile, full lens shift capability is retained, so the image can still be aligned after the focal length range is adjusted.

4. Three Things to Confirm Before Replacement

• The panel and resolution must match. This model is designed for a 0.67 inch panel. Machines with a different panel size or a different resolution will show some differences in projection performance, so it is safest to verify against the nameplate on the projector before installation.
• Interface and locking structure. Interfaces are generally well shared within the same generation of platforms, but the position of the locking latch differs between generations. If the image appears skewed or the edges look soft after mounting, the most common cause is that the lock is not fully engaged rather than a problem with the lens itself.
• Factor the shift margin into the installation. The shift range provides some installation flexibility, but edge image quality degrades when pushed to the limit; it is recommended to keep actual usage within 70% of the rated value.

For models not on the list, it is safer to send us the projector nameplate and a photo of the original lens for verification—platforms of the same generation often share the same interface, but the risk of placing an order based on a similar model number is not worth taking.