Vivitek LNS-5WZ2 Short Zoom Standard Throw Lens Guide: 8 Compatible Models

Vivitek OEM Lens LNS-5WZ2 Short Zoom is an OEM optical accessory for Vivitek engineering projectors. It is a standard-throw lens (Standard Throw) with a 0.77-1.10:1 throw ratio, designed for the inch panels of the DU/DW/DX engineering series. The manufacturer’s compatibility list covers 8 models. Before installation, simply verify the projector model and panel size—no adapter rings are needed. The value of an OEM lens lies not in the extra figures in its specification sheet, but in the fact that it is calibrated at the factory to the optical path and mount of projectors in that series: once installed, the image circle, edge illumination, and focusing travel all meet their design specifications, eliminating the need to use keystone correction to compensate for image-quality issues.

1. Lens Specifications

The above specifications are subject to the manufacturer’s official specifications. For mechanical dimensions, flange distance, and mount type not listed in the specification table, please verify them with us using the projector model. Ordering solely on the basis of a similar model carries the risk that the lens will not fit.

2. Calculating Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This OEM lens is a zoom lens (0.77-1.10:1), so a given image size corresponds to a range of installation distances. It can focus anywhere within that range.

The values above represent the clear distance from the front surface of the lens to the screen and do not account for rear cooling and cable-management space. They are calculated for a 16:10 image; actual installation should be verified on site and in accordance with the manufacturer’s manual.

Image quality differs at the two ends of the zoom range: near the close end, the image is brighter and the edges are slightly softer; near the far end, the edges are sharper and brightness decreases slightly. When the venue allows, it is recommended to position the lens near the middle of the range. After installation, first find the sharpest focus position on the focus ring, then fine-tune the lens shift.

3. Compatible Models (8 Units)

The table below is taken from the manufacturer’s official compatibility list. Brightness and resolution are filled in from the model database; where the data is unavailable, it is shown as "—" and is not estimated.

For models not on the list, send us photos of the projector nameplate and the existing lens so we can verify compatibility—platforms of the same generation often share a mount, but ordering based on a similar model is not worth the risk.

Throw Ratio by Model Series

The rated throw ratio of the same LNS-5WZ2 Short Zoom varies across the series listed below. Use the value corresponding to the series of the actual projector when selecting a lens.

4. Three Checks Before Replacement

• Make sure the panel size matches. The LNS-5WZ2 Short Zoom is designed for DU/DW/DX engineering-series inch panels. Even if the lens fits the mount, projectors with a different panel size or resolution may experience problems with the image circle and edge illumination.
• Calculate the installation distance first. The rated throw ratio of this lens is 0.77-1.10:1. Use the table in Section 2 to calculate the distance for your venue; a fixed-focus lens offers no adjustment margin, while a zoom lens should still allow an additional 10–20 cm at both ends.
• Verify the mount and locking mechanism. The OEM lens is calibrated to the mount used on projectors in this series, and you must hear the lock engage fully after installation. A skewed image or soft edges are usually caused by incomplete locking, rather than a problem with the lens itself.

If you are unsure, send us one photo each of the projector nameplate and the lens nameplate. Verification against the actual hardware is the most reliable approach.