WE260 Projector Lens 0.5–0.6:1 for 4 Appotronics Models: AL-DU935, DU835, DU735, DU635

WE260 is a short-throw lens for the 0.65/0.66/0.67 panel group (Appotronics), with a 0.5–0.6:1 throw ratio and lens shift. It is compatible with 4 projector models across 1 model series. This article presents the lens specifications, installation distances, model compatibility list, and replacement considerations in one place.

1. Lens Specifications

Lens shift is the key differentiator of this lens. The ±35% horizontal and ±10% vertical shift ranges allow the projector to be installed off the screen’s centerline and the image to be repositioned using lens shift without requiring keystone correction. Keystone correction comes at a cost—each adjustment level sacrifices some effective pixels and can blur text edges. In professional installations, lens shift should be used whenever it can solve the alignment issue instead of keystone correction; this is the baseline for image quality.

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of installation distance to image width. This lens has a zoom range of 0.5–0.6:1, so each image size corresponds to a range of installation distances, and the lens can be focused at any distance within that range.

The distances above are clear distances from the front of the lens to the screen and do not include space for rear chassis ventilation or cabling. These values are calculated for a 16:10 image; actual values are subject to on-site measurements and the manual.

Image quality differs at both ends of the zoom range: at the short end, the image is brighter and the edges are slightly softer; at the long end, the edges are sharper and brightness is slightly lower. Where the venue allows, the midpoint of the range is recommended. After installation, first find the sharpest focus position on the focus ring, then fine-tune the lens shift—adjusting both variables at once makes precise setup difficult.

3. Compatible Models (4 Appotronics Models)

The table below is ordered from newest to oldest by model production date and lists each model’s resolution, brightness, and zoom ratio for the original lens, making it easy to identify the right option for each project.

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

Shared Characteristics of These Models

The original standard lenses for the 4 models mostly have throw ratios within 1.23-1.97. The 0.5–0.6:1 model featured here changes the focal range, allowing different image sizes from the same projection distance—this is the direct reason for replacing the lens. It also retains full lens-shift capability, allowing the image to remain aligned after the focal range is adjusted.

4. Three Checks Before Replacement

• Match the panel and resolution. This model is compatible with a 0.67-inch panel. Projectors with different panel sizes or resolutions will vary somewhat in projection performance; the safest approach is to check the chassis nameplate before installation.
• Interfaces and locking mechanism. Interfaces are generally compatible across the same platform generation, but the locking-clip position differs between generations. If the image is skewed or the edges are soft after installation, the issue is usually that the lock is not fully engaged rather than a problem with the lens itself.
• Factor lens-shift margin into the installation. The shift range provides installation flexibility, but edge quality declines when it is pushed to its limits. Keep actual use within 70% of the specified values.

For compatibility confirmation of models outside the list, it is safer 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 solely on a similar model designation carries unnecessary risk.