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

Brand	Vivitek (Vivitek)
Lens Model	D88-LOZ101 Long Zoom 2
Throw Ratio	3.58-5.38:1
Product Type	Long-throw (Long Throw)
Compatible Panel	Inch panels for the DU/DW/DX professional series
Compatible Projector Models	33 Models
Warranty	12 months; for damage not caused by the user, after-sales service is available, subject to the date on the sales invoice

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.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	Approx. 7.70 – 11.57 m
120 inches	2.58 m	Approx. 9.24 – 13.88 m
150 inches	3.22 m	Approx. 11.55 – 17.35 m
200 inches	4.30 m	Approx. 15.39 – 23.13 m

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.

Projector 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)
DK8155Z	15000 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
DU8053Z	14000 lumens	WUXGA,1920 x 1200
DU8055Z	16000 lumens	WUXGA,1920 x 1200
DU8057Z	23,750	WUXGA,1920 x 1200
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 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.

Projector Series	Throw Ratio
—	3.58-5.38:1

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.