Barco R9801832 FLDX UST Short-Throw Lens: Compatible with 14 Models

Barco genuine lens R9801832 FLDX UST is an OEM optical accessory for Barco engineering projectors. It is a short-throw lens (Short Throw) with a 0.41:1 throw ratio. The official compatibility list covers 14 projector models, so simply verify the projector model and panel size before installation—no adapter ring is needed. The value of an OEM lens lies not in the additional specifications, but in the fact that it is calibrated at the factory to the optical path and lens mount of that projector series. Once installed, the image circle, edge illumination, and focusing travel all operate at their designed values, with no need to compensate for image quality using keystone correction.

1. Lens Specifications

Brand	Barco (Barco)
Lens Model	R9801832 FLDX UST
Throw Ratio	0.41:1
Product Type	Short Throw (Short Throw)
Compatible Models	14 projector models
Warranty	12 months; damage not caused by the user is eligible for after-sales service, based on the date on the shipping invoice

The above specifications are subject to the manufacturer's official specifications. For mechanical dimensions, flange distance, and lens mount type not shown in the specifications table, please verify them with us using the projector model. Ordering based solely on a similar model carries the risk that the lens will not fit.

2. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This genuine OEM lens has a fixed focal length (0.41:1). The installation distance changes linearly with image size, with no adjustment margin, so accurate measurements are essential before installation.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 0.88 m
120 inches	2.58 m	approx. 1.06 m
150 inches	3.22 m	approx. 1.32 m
200 inches	4.30 m	approx. 1.76 m

The distances above are clear distances from the front face of the lens to the projection screen and do not account for space behind the projector for ventilation and cable connections. These values are calculated for a 16:10 image; actual values are subject to on-site measurements and the manufacturer's manual.

3. Compatible Projector Models (14 Models)

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

Model	Brightness	Resolution
Balder	7000 lumens	3840x2160
Balder CinemaScope	7000 lumens	3840x2160
Bragi	2600 lumens	3840x2160
Bragi CinemaScope	2600 lumens	3840x2160
F35 WQXGA	—	—
F70-W6	5900 lumens	1920x1200
F70-W8	—	1920x1200
F90-W13	—	1920x1200
FL40-WU	3200 lumens	1920x1200
G100-W16	16000 lumens	WUXGA,1920 x 1200
G100-W19	19000 lumens	WUXGA,1920 x 1200
G100-W22	22000 lumens	WUXGA,1920 x 1200
Loki	12000 lumens	3840x2160
Medea	6500 lumens	3840x2160

To determine whether a model not on the list is compatible, please send us photos of the projector nameplate and the existing lens for verification. Platforms of the same generation often share the same lens mount, but ordering based solely on a similar model is not worth the risk.

Throw Ratios by Projector Series

The nominal throw ratio varies by projector series when the same R9801832 FLDX UST is installed. Select the value that applies to the series of your actual projector.

Projector Series	Throw Ratio
—	0.41:1

4. Three Checks Before Replacement

• Confirm the projector chip and resolution. The OEM lens is 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 0.41:1. Use the table in Section 2 to calculate the distance based on the dimensions of your installation site. This fixed-focal-length lens has no adjustment margin; even with a zoom lens, allow an additional 10–20 cm at both ends of the zoom range.
• Verify the lens mount and locking mechanism. The OEM lens is calibrated to the lens mount of that projector series. After installation, you must hear it click into the locked position. A skewed image or soft edges are usually caused by incomplete locking, not by a problem with the lens itself.

If you are unsure, send us one photo each of the projector nameplate and the nameplate on the existing lens. Verification against the actual hardware is the safest approach.