Vivitek D88-SMLZ01 Medium Zoom Long-Throw Lens for 29 Models

Vivitek Genuine Lens D88-SMLZ01 Medium Zoom is an original optical accessory for Vivitek engineering projectors. It is a long-throw lens (Long Throw) with a throw ratio of 2.22-3.67:1, designed for the panel sizes used in the DU/DW/DX engineering series. The manufacturer's compatibility list covers 29 models. Before installation, simply verify the projector model and panel size; there is no need to make do with adapter rings. The value of a genuine lens lies not in the extra rows of specifications, but in the fact that it is factory-calibrated to the optical path and mount of this projector series. Once installed, the image circle, edge illumination, and focus travel all match their design values, so there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

Brand	Vivitek (Vivitek)
Lens Model	D88-SMLZ01 Medium Zoom
Throw Ratio	2.22-3.67:1
Product Type	Long Throw
Applicable Panels	DU/DW/DX Engineering Series (panel sizes in inches)
Models Covered	29 models
Warranty	12 months; for damage not caused by the user, after-sales service is available, based on the date shown on the shipping documents

The above specifications are subject to the manufacturer's official specifications. Mechanical dimensions, flange distance, and mount type are not shown in the table; please contact us with the projector model so we can verify them. Placing an order solely because the model names appear similar risks a lens that may not fit.

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of installation distance to image width. This genuine lens has a variable throw ratio (2.22-3.67:1), so each image size corresponds to a range of installation distances; the lens can be focused anywhere within that range.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	Approx. 4.77 – 7.89 m
120 inches	2.58 m	Approx. 5.73 – 9.47 m
150 inches	3.22 m	Approx. 7.16 – 11.84 m
200 inches	4.30 m	Approx. 9.55 – 15.78 m

The values above represent the clear distance from the front surface of the lens to the screen and do not include space for rear cooling and cable connections on the projector. They are calculated for a 16:10 image; actual requirements should be verified through on-site measurements and the manufacturer's manual.

Image quality differs at 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 is slightly lower. When site conditions permit, use the middle of the range. After installation, find the sharpest position on the focus ring, then fine-tune the lens shift.

III. Compatible Models (29 Models)

The table below is taken from the manufacturer's compatibility list. Brightness and resolution are taken from the model database; unavailable values are marked as '—' and have not been estimated.

Model	Brightness	Resolution
D8010W	8000 lumens	1280x800
D8900	10000 lumens	1024x768
DH6671	5850 lumens	1920x1080
DH6861	7000 lumens	1920x1080
DK10000Z	10000 lumens	4K (3840 x 2160)
DK8500Z-BK	7500 lumens	3840x2160
DK8500Z-WH	7500 lumens	3840x2160
DU6675	6000 lumens	1920x1200
DU6771-WH	6500 lumens	1920x1200
DU6871	7300 lumens	1920x1200
DU7099Z+	—	—
DU7099Z-BK	7600 lumens	1920x1200
DU7099Z-WH	7600 lumens	1920x1200
DU7099Z-WH Plus	7600 lumens	1920x1200
DU7199Z+	—	—
DU7199Z-WH +	—	—
DU7299Z+	—	—
DU7299Z-BK	9600 lumens	1920x1200
DU7299Z-WH	9600 lumens	1920x1200
DU7299Z-WH Plus	9600 lumens	1920x1200
DU8090Z-BK	8000 lumens	1920x1200
DU8090Z-WH	8000 lumens	1920x1200
DU8190Z	10000 lumens	WUXGA,1920 x 1200
DU8195Z	13500 lumens	WUXGA,1920 x 1200
DU8395Z-BK	15000 lumens	1920x1200
DW6035	6000 lumens	1280x800
DW6851	7000 lumens	1280x800
DX6535	6700 lumens	1024x768
DX6831	8000 lumens	1024x768

For use with a model not on the list, please send us photos of the projector nameplate and the current lens for verification. Platforms from the same generation often share a mount, but the risk of ordering based only on a similar model designation is not worth taking.

Throw Ratio by Projector Series

The rated throw ratio varies by projector series even when the same D88-SMLZ01 Medium Zoom lens is used. Select the value that corresponds to the series of the actual projector.

Model Series	Throw Ratio
—	2.22-3.67:1

IV. Three Checks Before Replacement

• Make sure the panel size matches. The D88-SMLZ01 Medium Zoom is designed for DU/DW/DX engineering-series panels (sizes in inches). Even if the mount fits, projectors with different panel sizes or resolutions can have image-circle and edge-illumination problems.
• Calculate the installation distance first. The rated throw ratio of this lens is 2.22-3.67:1. Use the table in Section II to calculate the distance for your venue. A fixed-focus lens offers no adjustment margin, and even a zoom lens requires 10–20 cm of extra allowance at both ends of the range.
• Verify the mount and locking mechanism. The genuine lens is calibrated to the mount used by this projector series. After installation, you must hear it click into the locked position. A skewed image or soft edges usually indicates 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 current lens nameplate. Verification against the actual hardware is the most reliable approach.