BenQ 5J.J8C14.002 Short: Short-Throw Lens for SH960+ and TH963

BenQ Genuine Lens 5J.J8C14.002 Short is an OEM optical accessory for BenQ business projectors, featuring a short throw (Short Throw) and a throw ratio of 0.77:1. The official compatibility list covers 2 projector models; before installation, simply verify the projector model and panel size—there is no need to improvise with an adapter ring. The value of an OEM lens lies not in the additional figures on a specification sheet, but in its factory calibration to the optical path and lens mount of the corresponding model series. Once installed, the image circle, edge illumination, and focusing travel are all at their design values, eliminating the need to use keystone correction to compensate for image quality.

I. Lens Specifications

Brand	BenQ (BenQ)
Lens Model	5J.J8C14.002 Short
Throw Ratio	0.77:1
Product Type	Short Throw (Short Throw)
Compatible Projector Models	2 models
Warranty	12 months; for damage not caused by the user, after-sales service is available, based on the date on the shipping invoice

The above specifications are based on the manufacturer's official specifications. For mechanical dimensions, flange distance, and lens mount type not listed in the specification table, please check with us using the projector model. Placing an order solely because the model numbers are similar risks a lens that may not fit.

II. Converting Throw Ratio into Installation Distance

A throw ratio is the ratio of the installation distance to the image width. This OEM lens has a fixed focal length (0.77:1), so the installation distance varies linearly with image size, with no adjustment margin. Accurate measurements are therefore essential before installation.

Screen Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 1.66 m
120 inches	2.58 m	approx. 1.99 m
150 inches	3.22 m	approx. 2.48 m
200 inches	4.30 m	approx. 3.31 m

These distances represent the clear distance from the front face of the lens to the screen and do not include space behind the projector for heat dissipation or cable connections. They are calculated for a 16:10 aspect ratio; actual distances should be confirmed through on-site measurements and in accordance with the manufacturer's manual.

III. Compatible Projector Models (2 Models)

The table below is taken from the official compatibility list. Brightness and resolution are populated from the model database; where data is unavailable, “—” is shown, with no assumptions made.

Model	Brightness	Resolution
SH960+	5500 lumens	1920x1080
TH963	6000 lumens	1920x1080

For compatibility with a model not on the list, please send us photos of the projector nameplate and the existing lens for verification. Platforms from the same generation often share a lens mount, but ordering based solely on a similar model creates unnecessary risk.

Throw Ratios Across Model Series

The rated throw ratio varies when the same 5J.J8C14.002 Short lens is installed in the model series listed below. Use the value corresponding to the series of the actual projector.

Model Series	Throw Ratio
—	0.77:1

IV. Three Checks Before Replacement

• Confirm the projector chip and resolution. OEM lenses are designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the full image, causing vignetting or edge light loss after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 0.77:1; use the table in Section II to calculate the distance for your installation site. A fixed-focal-length lens provides no adjustment margin, and even a zoom lens should leave 10–20 cm at both ends.
• Verify the lens mount and locking mechanism. OEM lenses are calibrated to the lens mount of the corresponding model series, and you must hear the locking mechanism engage fully after installation. Skewed images or soft edges are usually caused by the lock not being fully engaged, rather than by the lens itself.

If you are uncertain, take one photo of the projector nameplate and one of the existing lens nameplate and send them to us. Verification against the actual hardware is the most reliable approach.