Barco R9832760 Zoom Long-Throw Lens: RLS-W12 Compatibility

Barco Original Lens R9832760 Zoom is a factory-supplied optical accessory for Barco engineering projectors, featuring a long throw ratio of 1.85-2.40:1. The factory compatibility list covers 1 model. Before installation, simply verify the projector model and panel size, with no need to resort to adapter rings. The value of an original lens lies not in the additional figures in the specification sheet, but in the fact that it is calibrated at the factory to the optical path and mount of that projector series: once installed, the image circle, edge illumination, and focus travel all operate at their design values, with no need to use keystone correction to compensate for image quality.

I. Lens Specifications

The above specifications are subject to the manufacturer's specifications. Mechanical dimensions, flange distance, and mount type are not listed in the specification table, so please contact us with the projector model. Ordering based solely on a similar model carries the risk of an incompatible fit.

II. Calculating the Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This original zoom lens (1.85-2.40:1) corresponds to a range of distances for the same image size and can focus anywhere within that range during installation.

These figures represent the clear distance from the front element of the lens to the screen, excluding clearance for rear projector ventilation and cable connections. They are calculated for a 16:10 image; actual values should be verified through on-site measurements and the manufacturer's manual.

Image quality differs at the two ends of the zoom range: toward the shorter-throw end, the image is brighter and the edges are slightly softer; toward the longer-throw end, the edges are sharper and brightness decreases slightly. When site conditions allow, use the middle of the range. After installation, first find the sharpest setting on the focus ring, and then fine-tune the lens shift.

III. Compatible Models (1 Projector)

The table below is taken from the factory compatibility list. Brightness and resolution are populated from the projector model database; values that cannot be obtained are marked “—” and are not estimated.

For compatibility with a model not on the list, please send us photos of the projector nameplate and the existing lens for verification. Projector platforms of the same generation often share the same lens mount, but the risk of ordering based on a similar model is not worth taking.

Throw Ratios Across Projector Series

The nominal throw ratio differs when the same R9832760 Zoom lens is used with the series listed below, so select the value based on the series of the actual projector.

IV. Three Things to Confirm Before Replacement

• Confirm the projector's imaging panel and resolution. Each original lens is designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the panel, resulting in vignetting or light loss at the edges after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.85-2.40:1. Use the table in Section 2 to calculate the distance for your installation space. Fixed-focus lenses offer no adjustment margin; with a zoom lens, allow 10–20 cm at both ends of the range.
• Check the mount and locking mechanism. The original lens is calibrated to the mount of that projector series. You must hear it lock securely after installation. A skewed image or soft edges are usually caused by incomplete locking, not by the lens itself.

If you are unsure, take one photo each of the projector nameplate and the existing lens nameplate and send them to us. Verification against the physical items is the safest approach.