Vivitek D88-WF18501 Short Fixed Lens: Compatible with 17 Models

Vivitek Genuine Lens D88-WF18501 Short Fixed is an OEM optical accessory for Vivitek professional projectors. It is a short-throw (Short Throw) lens with a 0.80:1 throw ratio for DU/DW/DX Engineering Series inch panels. The official compatibility list covers 17 models. Before installation, simply verify the projector model and panel size—no adapter ring is needed. The value of an OEM lens lies not in the extra numbers it adds to a specification sheet, but in its factory calibration to the optical path and mount of the projector series. Once installed, the image circle, edge illumination, and focusing travel all meet their design values, so there is no need to use keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications are based on the manufacturer's official specifications. For mechanical dimensions, flange distance, and mount type not shown in the specifications table, please provide your projector model so we can verify them. Placing an order based solely on a similar model number 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 has a fixed throw (0.80:1), so the installation distance varies linearly with the image size and provides no adjustment margin. Measurements must be accurate before installation.

The above figures represent the clear distance from the front face of the lens to the screen and do not include space behind the projector for cooling and cable connections. They are calculated for a 16:10 image; in practice, confirm the actual distance through on-site measurements and the manufacturer's manual.

3. Compatible Models (17 Models)

The table below is taken from the official compatibility list. Brightness and resolution have been populated from the model database; where unavailable, they are marked “—” and have not been guessed.

To determine whether a model not listed here is compatible, send us photos of the projector nameplate and the existing lens. Projector platforms from the same generation often share a mount, but ordering based on a similar model number creates fitment risks that are not worth taking.

Throw Ratio by Projector Series

The rated throw ratio of the same D88-WF18501 Short Fixed lens varies by projector series. Use the value that corresponds to the series of the projector in use.

4. Three Checks Before Replacement

• Make sure the panel size matches. D88-WF18501 Short Fixed is designed for DU/DW/DX Engineering Series inch panels. On a projector with a different panel size or resolution, the image circle and edge illumination may suffer even if the mount physically fits.
• Calculate the installation distance first. This lens has a rated throw ratio of 0.80:1. Use the table in Section 2 to calculate the distance for your installation site. A fixed lens has no adjustment margin; for a zoom lens, allow an additional 10–20 cm at both ends of the range.
• Verify the mount and locking mechanism. The OEM lens is calibrated to the mount used on projectors in this series. After installation, you must hear the lock engage fully. A skewed image or soft edges are usually caused by incomplete locking rather than a problem with the lens itself.

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