Vivitek D88-LOZ201 Long Zoom Lens: Fits 33 Models Including D8010W, D8900, DH6671, DH6861

Vivitek OEM Lens D88-LOZ201 Long Zoom is an OEM optical accessory for Vivitek professional projectors. It is a long-throw lens with a 5.31-8.26:1 throw ratio for DU/DW/DX professional-series panels measured in inches. The OEM compatibility list covers 33 models; before installation, simply verify the chassis model and panel size—there is no need to improvise with adapter rings. The value of an OEM lens lies not in a few extra lines in the specifications, but in the fact that it is calibrated at the factory to the optical path and mount of that series of chassis: once installed, the image circle, edge illumination, and focus travel all meet their design values, with no need to rely on keystone correction to compensate for image quality.

1. Lens Specifications

These specifications are subject to the OEM specifications. For mechanical dimensions, flange distance, and mount type not shown in the specifications table, please provide the chassis model so we can verify them. Placing an order solely because the model numbers are similar carries the risk that the lens will not fit.

2. Converting Throw Ratio into Installation Distance

The throw ratio is the ratio of installation distance to image width. This OEM lens is a zoom lens (5.31-8.26:1), so a given image size corresponds to a range of distances; it can focus anywhere within that range.

These values represent the clear distance from the front surface of the lens to the screen and do not allow for ventilation and cable-connection space behind the chassis. Calculations are based on a 16:10 frame; actual values should be verified by on-site measurement and confirmed in the OEM manual.

Image quality varies at the two ends of the zoom range: near the short end, the image is brighter and the edges are slightly softer; near the long end, the edges are sharper and brightness decreases slightly. If the venue permits, we recommend positioning the lens in the middle of the range. After installation, find the sharpest position using the focus ring, then fine-tune the lens shift.

3. Compatible Models (33 models)

The table below comes from the OEM compatibility list. Brightness and resolution are populated from the model database; unavailable data are marked “—” rather than estimated.

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

Throw Ratio by Model Series

The rated throw ratio varies by series when the same D88-LOZ201 Long Zoom lens is used with the series listed below, so select the value based on the actual chassis series.

4. Three Checks Before Replacement

• The panel size must match. D88-LOZ201 Long Zoom is designed for DU/DW/DX professional-series panels measured in inches. Even if the mount fits, machines with different panel sizes or resolutions may experience problems with image circle coverage and edge illumination.
• Calculate the installation distance first. This lens has a rated throw ratio of 5.31-8.26:1. Use the table in Section 2 to match the dimensions of your venue; fixed-focus lenses offer no adjustment margin, and zoom lenses should also allow 10–20 cm at both ends.
• Verify the mount and locking mechanism. The OEM lens is calibrated to the mount of that chassis series. After installation, you must hear it lock fully into place; a skewed image or soft edges are usually due to incomplete locking, not a fault in the lens itself.

If you are unsure, send us one photo each of the chassis nameplate and the existing lens nameplate. Verification against the actual hardware is the safest approach.