WK180 Projector Lens 0.46:1 for 3 Hisense Engineering Projectors: P80, P100, P120

WK180 is a short-throw lens for the 0.65/0.66/0.67 panel group (Hisense), featuring a 0.46:1 throw ratio and lens shift. It is compatible with 3 projector models across 1 model series. This article presents the lens specifications, installation distance, model compatibility list, and replacement considerations in one place.

I. Lens Specifications

Lens shift capability is the key differentiator of this lens. The shift range of 85.2% horizontally and 39.6% vertically allows the projector to be installed off-center relative to the screen, with the image repositioned through lens shift rather than keystone correction. Keystone correction comes at a cost—each level of correction reduces the effective pixel count and blurs text edges. In professional installations, lens shift should always be used instead of keystone correction whenever possible, as this is fundamental to image quality.

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of installation distance to image width. This lens has a fixed focal length (0.46:1), so the installation distance changes linearly with image size, leaving no room for adjustment. Accurate measurements are essential before installation.

These figures represent the clear distance from the front of the lens to the screen and do not include space for rear chassis cooling and cable connections. They are calculated for a 16:10 image; actual values are subject to on-site measurements and the manual.

III. Compatible Models (3 Models, Hisense)

The table below is ordered by model production date, from newest to oldest, and lists each model's resolution, brightness, and factory lens zoom ratio for quick selection according to project requirements.

Common Features of These Models

The throw ratios of the standard factory lenses for the 3 models vary, with the exact values being Depends on the lens. The 0.46:1 ratio of the model discussed here represents an adjustment to the focal range, allowing different image sizes at the same projection distance—this is the direct reason for replacing the lens. Full lens shift capability is retained, so the image can still be aligned after adjusting the focal range.

IV. Three Checks Before Replacement

• Match the panel and resolution. This model is designed for a 0.67-inch panel. Projection performance varies slightly among projectors with different panel sizes or resolutions, so checking the nameplate on the chassis before installation is the safest approach.
• Check the interface and locking mechanism. Interfaces are generally compatible within the same platform generation, but locking-tab positions vary by generation. If the image appears skewed or the edges look soft after installation, the most likely cause is incomplete engagement of the lock, rather than a problem with the lens itself.
• Account for lens shift margin during installation. The shift range provides installation flexibility, but image quality at the edges declines when it is pushed to the limit. For actual use, keep operation within 70% of the rated value.

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