Vivitek D86-0711 Short Zoom 2 Standard Throw Lens Guide for 10 Compatible Models

Vivitek Original Lens D86-0711 Short Zoom 2 is a genuine optical accessory for Vivitek engineering projectors. It features a standard throw (Standard Throw) with a 0.77-1.10:1 throw ratio and is designed for DU/DW/DX Engineering Series inch panels. The factory compatibility list covers 10 models; before installation, simply verify the chassis model and panel size—no adapter ring workaround is needed. The value of an original lens lies not in the extra figures in its specifications, but in the fact that it is calibrated at the factory to the optical path and mount of that 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 the image.

1. Lens Specifications

The above specifications are subject to the original factory specifications. Mechanical dimensions, flange distance, and mount type are not shown in the specifications table; please verify them with us based on the projector model, as ordering solely on the basis of a similar model carries the risk that the lens will not fit.

2. Converting Throw Ratio to Installation Distance

Throw ratio is the ratio of installation distance to image width. This original lens is a zoom lens (0.77-1.10:1), so a given image size corresponds to a range of installation distances, and it can focus at any point within that range.

The distances above are clear measurements from the front surface of the lens to the screen and do not include space behind the chassis for ventilation and cable connections. They are calculated for a 16:10 image; actual distances should be verified by on-site measurement and in accordance with the factory manual.

Image quality differs at the two ends of the zoom range: toward the short end, the image is brighter and the edges are slightly softer; toward the long end, the edges are sharper and brightness decreases slightly. When the venue allows, placing the lens in the middle of the range is recommended. After installation, first find the sharpest position using the focus ring, then fine-tune the lens shift.

3. Compatible Models (10 models)

The table below is taken from the factory compatibility list. Brightness and resolution are populated from the model database; unavailable specifications are shown as “—” and are not guessed.

For models not listed, please send us photos of the chassis nameplate and the existing lens so we can verify compatibility. Same-generation platforms often share the same mount, but the risk of ordering based on a similar model is not worth taking.

Throw Ratio by Model Series

The nominal throw ratio of the same D86-0711 Short Zoom 2 lens varies depending on the series it is installed on. Select the value for the series of the actual projector.

4. Three Checks Before Replacement

• Make sure the panel size matches. D86-0711 Short Zoom 2 is designed for DU/DW/DX Engineering Series inch panels. Projectors with different panel sizes or resolutions may exhibit image-circle and edge-illumination problems even if the mount accepts the lens.
• Calculate the installation distance first. This lens has a nominal throw ratio of 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; with a zoom lens, allow a 10–20 cm margin at both ends of the range as well.
• Verify the mount and locking mechanism. The original lens is calibrated to the mount of the relevant projector series, and you must hear it click into the locked position 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, take one photo of the projector nameplate and one of the existing lens nameplate and send them to us. Verification against the actual items is the safest approach.