Barco R9832759 Zoom Long-Throw Lens for PFWU-51B and PFWX-51B

Barco Genuine Lens R9832759 Zoom is an original optical accessory for Barco engineering projectors. It is a long-throw lens with a throw ratio of 1.93-2.89:1. The official compatibility list covers 2 models. Before installation, simply verify the projector model and panel size; no adapter ring workaround is needed. The value of an original lens lies not in a few extra rows of 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 focus travel all match the design specifications, eliminating the need to use keystone correction to compensate for image quality.

1. Lens Specifications

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 based on the projector model. Placing an order based solely on a similar model number carries the risk that the lens will not fit.

2. Throw Ratio and Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This genuine zoom lens (1.93-2.89:1) provides a range of installation distances for each image size, and focus can be achieved anywhere within that range.

These distances represent the clear distance from the front face of the lens to the screen and do not include space required for rear projector cooling or cable connections. They are calculated for a 16:10 image; in practice, follow on-site measurements and the manufacturer's manual.

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

3. Compatible Models (2 Models)

The following table is taken from the manufacturer's official compatibility list. Brightness and resolution are populated from the model database; values that are unavailable are shown as "—" 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. Platforms from the same generation often share the same lens mount, but ordering based solely on a similar model name is not worth the risk.

Throw Ratio by Projector Series

The nominal throw ratio varies by projector series for the same R9832759 Zoom, so use the value for the series of the projector in question.

4. Three Checks Before Replacement

• Confirm the projector's imaging chip and resolution. Original 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 light loss at the edges after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 1.93-2.89:1. Use the table in Section 2 to calculate the distance for your installation site. A fixed-focal-length lens offers no adjustment range, while a zoom lens should also allow 10–20 cm of margin at both ends.
• Verify the lens mount and locking mechanism. Original lenses are calibrated to the lens mount of the corresponding projector series. After installation, you must hear the lock engage. A skewed image or soft edges are usually caused by the lens not being fully locked, rather than by a fault in the lens itself.

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