Vivitek D88-LOZ101 Long Zoom 2 Lens: Compatible with 33 Models

Vivitek Original Lens D88-LOZ101 Long Zoom 2 is an OEM optical accessory for Vivitek professional projectors. It is a long-throw (Long Throw) lens with a 3.58-5.38:1 throw ratio, designed for inch panels in the DU/DW/DX professional projector series. The official compatibility list covers 33 projector models; before installation, simply verify the projector model and panel size, with no need to improvise using adapter rings. The value of an original lens lies not in adding a few more rows to the specification table, but in its factory calibration to the optical path and mount of that projector series. Once installed, the image circle, edge illumination, and focus travel all meet their design values, so keystone correction is not needed to compensate for image quality.

I. Lens Specifications

The above specifications are subject to the manufacturer's original specifications. For mechanical dimensions, flange distance, and mount type not listed in the specification table, please contact us with the projector model for verification. Ordering solely on the basis of a similar model risks a lens that will not fit.

II. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (3.58-5.38:1), so each image size corresponds to a distance range, and the lens can focus anywhere within that range.

These figures represent the clear distance from the front surface 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 aspect ratio; in practice, refer to on-site measurements and the manufacturer's manual.

Image quality varies between the two ends of the zoom range: toward the short-throw end, the image is brighter and the edges are slightly softer; toward the long-throw end, the edges are sharper and brightness decreases slightly. Where the installation environment permits, it is recommended to use the middle of the range. After installation, first find the sharpest setting on the focus ring, then fine-tune the lens shift.

III. Compatible Projector Models (33 Models)

The table below is taken from the official compatibility list. Brightness and resolution are populated from the model database; values that cannot be obtained are shown as '—', with no assumptions made.

For compatibility with a model not included in the list, please send us photos of the projector nameplate and the existing lens for verification. Projectors based on the same-generation platform often share a mount, but the risk of ordering on the basis of a similar model is not worth taking.

Throw Ratio by Projector Series

The rated throw ratio of the same D88-LOZ101 Long Zoom 2 varies by projector series, so select the value based on the series of the actual projector.

IV. Three Checks Before Replacement

• Make sure the panel size matches. D88-LOZ101 Long Zoom 2 is designed for inch panels in the DU/DW/DX professional series. On projectors with a different panel size or resolution, the image circle and edge illumination may be compromised even if the lens mount fits.
• Calculate the installation distance first. This lens has a rated throw ratio of 3.58-5.38:1. Use the table in Section II to match the dimensions of your installation site. A fixed-focus lens offers no adjustment margin, and a zoom lens should also allow an additional 10–20 cm at both ends of the range.
• Verify the mount and locking mechanism. Original lenses are calibrated to the mounts of the corresponding projector series. After installation, confirm that you hear the lens lock into place. A skewed image or soft edges are usually caused by incomplete locking rather than a fault in the lens.

If you are unsure, take one photo of the projector nameplate and one photo of the existing lens nameplate and send them to us. Checking the actual hardware is the safest approach.