NEC NP14ZA Zoom Long-Throw Lens for PA500U-13ZL

NEC Genuine Lens NP14ZA Zoom is an original optical accessory for NEC professional projectors, featuring a long throw with a throw ratio of 2.98-4.77:1. The manufacturer's compatibility list covers 1 model. 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 a few extra rows in the specifications table, but in the fact that its optical path and mount are calibrated to that projector series at the factory: once installed, the image circle, edge illumination, and focusing travel all meet their design specifications, with no need to use keystone correction to compensate for image quality.

I. Lens Specifications

Brand	NEC (NEC)
Lens Model	NP14ZA Zoom
Throw Ratio	2.98-4.77:1
Product Type	Long Throw
Compatible Models	1 model
Warranty	12 months; for damage not caused by the user, contact our after-sales service, subject to the date shown on the shipping invoice

The above specifications are subject to the manufacturer's specifications. For mechanical dimensions, flange distance, and mount type not shown in the specifications table, please contact us with the exact projector model. Placing an order based solely on a similar model carries the risk of a fitment problem.

II. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This genuine lens is a zoom lens (2.98-4.77:1), so each image size corresponds to a range of distances, and the lens can focus at any position within that range during installation.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 6.41 – 10.26 m
120 inches	2.58 m	approx. 7.69 – 12.31 m
150 inches	3.22 m	approx. 9.61 – 15.38 m
200 inches	4.30 m	approx. 12.81 – 20.51 m

The distances above represent the clear distance from the front surface of the lens to the screen, excluding space for rear housing ventilation and cabling. Figures are calculated for a 16:10 image; actual values should be confirmed through on-site measurement and the manufacturer's manual.

Image quality varies between the two ends of the zoom range: near the close end, the image is brighter and the edges are slightly softer; near the far end, the edges are sharper and brightness is slightly lower. When the venue permits, position the lens near the middle of the range. After installation, first find the sharpest setting on the focus ring, then fine-tune the lens shift.

III. Compatible Models (1 model)

The table below is taken from NEC's official compatibility list. Brightness and resolution are populated from the model database; where the data cannot be obtained, an em dash is shown rather than making assumptions.

Model	Brightness	Resolution
PA500U-13ZL	5000 lumens	1920x1200

To check whether a model outside the list can be used, send us photos of the projector nameplate and existing lens for verification—platforms of the same generation often share a mount, but the risk of ordering based on a similar model is not worth taking.

Throw Ratios by Model Series

The nominal throw ratio differs by model series when the same NP14ZA Zoom is installed, so select the value based on the series of the actual projector.

Model Series	Throw Ratio
—	2.98-4.77:1

IV. Three Checks Before Replacement

• Confirm the projector chip and resolution. Genuine lenses are designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the full image, resulting in vignetting or edge light loss after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 2.98-4.77:1. Use the table in Section II to calculate the distance for your venue. A fixed-focus lens offers no adjustment range, while a zoom lens still requires 10–20 cm of allowance at both ends.
• Check the mount and locking mechanism. The genuine lens is calibrated to the mount of the relevant projector series. You must hear the lock engage fully after installation. A skewed image or soft edges are usually caused by incomplete locking, not a problem with the lens itself.

If you are uncertain, take one photo of the projector nameplate and one of the existing lens nameplate, then send both to us. Verification against the actual products is the safest approach.