Vivitek LNS-5LZ1 Long Zoom 1 Lens: Compatible with D5010-WNL, D5110W-WNL, D5190HD-WNL, D5380U-WNL

Vivitek Original Lens LNS-5LZ1 Long Zoom 1 is a genuine optical accessory for Vivitek engineering projectors. It is a long-throw lens with a throw ratio of 1.93-2.90:1, designed for DU/DW/DX engineering series panels. The original compatibility list covers 7 projector models; before installation, simply verify against the projector model and panel size — no adapter rings needed. The value of an original lens isn't in having a few more rows of numbers on a spec sheet, but in being calibrated at the factory to the optical path and mount of that series: once installed, the image circle, edge illumination, and focus travel are all at their design values, so you don't need keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications are subject to the original manufacturer's specifications. For mechanical dimensions, flange focal distance, and mount type that are not shown in the spec table, please verify with us based on your projector model — ordering based on model similarity alone carries the risk of incompatibility.

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 (1.93-2.90:1), so the same image size corresponds to a range of distances; as long as installation falls within this range, focus can be achieved.

The above figures are the clear distance from the lens front to the screen, excluding rear ventilation and cabling space behind the projector body. Calculated for 16:10 aspect ratio; actual values are subject to on-site measurement and the original manufacturer's manual.

Image quality differs at the two ends of the zoom range: toward the near end the image is brighter with slightly softer edges; toward the far end the edges are sharper with slightly reduced brightness. Where space permits, it is recommended to land in the middle of the range; after installation, first find the sharpest position on the focus ring, then fine-tune the shift.

3. Compatible Models (7 units)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are filled in from the model database, with "—" where unavailable, without speculation.

To check whether models outside this list are compatible, please send us photos of the projector nameplate and the existing lens for verification — same-generation platforms often share mounts, but the risk of ordering based on model similarity alone isn't worth it.

Throw Ratios Across Different Model Series

The same LNS-5LZ1 Long Zoom 1 installed on the following series has different nominal throw ratios; selection should be based on the actual series of your projector.

4. Three Things to Confirm Before Replacement

• Panel size must match. The LNS-5LZ1 Long Zoom 1 is designed for DU/DW/DX engineering series inch panels. For projectors with different panel sizes or resolutions, even if the mount fits, the image circle and edge illumination will be problematic.
• Calculate installation distance first. This lens has a nominal throw ratio of 1.93-2.90:1; use the table in Section 2 to map it to your venue's dimensions. Prime lenses have no margin, and even for zoom lenses, allow 10–20 cm at both ends.
• Verify the mount and locking. The original lens is calibrated to the mount of that series; after installation, you must hear it lock into place. Image skew or soft edges are usually caused by incomplete locking, not by the lens itself.

If unsure, take a photo of the projector nameplate and the existing lens nameplate and send them to us — verification against the actual hardware is the safest approach.