Barco R9832746 Zoom Long-Throw Projection Lens for MSWU-81E, RLM-W6, RLM-W8

Barco Genuine Lens R9832746 Zoom is an original optical accessory for Barco professional projectors. It is a Long Throw lens with a throw ratio of 4.34-6.76:1. The official compatibility list covers 3 models, so simply verify the projector model and panel size before installation—no adapter ring workaround is needed. The value of a genuine lens lies not in the extra figures it adds to the specification sheet, but in the fact that it is factory-calibrated to the optical path and lens mount of that projector series: once installed, the image circle, edge illumination, and focusing travel are all 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 official factory specifications. For mechanical dimensions, flange distance, and lens mount type not listed in the specifications table, please contact us with the projector model. Ordering based solely on a similar model carries the risk of a lens that does not fit.

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 (4.34-6.76:1), so a given screen size corresponds to a range of installation distances, and it can focus at any distance within that range.

The distances above are clear distances from the front surface of the lens to the screen and do not include space behind the projector for cooling and cabling. They are calculated for a 16:10 image; in practice, follow on-site measurements and the manufacturer's manual.

Image quality varies between the two ends of the zoom range: near the short end, the image is brighter and the edges are slightly softer; near the long end, the edges are sharper, but brightness decreases slightly. Where space permits, use the middle of the range. After installation, first find the sharpest setting using the focus ring, and then fine-tune the lens shift.

III. Compatible Models (3 Models)

The table below is taken from the official compatibility list. Brightness and resolution are populated from the model database; unavailable values are marked as 「—」 and are not estimated.

For compatibility with models not on the list, send us photos of the projector nameplate and current lens so we can verify—platforms from the same generation often share a lens mount, but the risk of ordering based solely on a similar model is not worth taking.

Throw Ratio by Model Series

The rated throw ratio varies by model series when the same R9832746 Zoom lens is used. Select the value for the series of the actual projector.

IV. Three Checks Before Replacement

• Confirm the projector's imaging chip and resolution. Genuine lenses are designed for specific panel sizes. If the panel specifications differ, the lens image circle cannot cover the full panel, resulting in vignetting or edge light loss after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 4.34-6.76:1. Use the table in Section II to calculate the distance for your own site dimensions. A prime lens offers no adjustment margin, and a zoom lens should also allow 10–20 cm at both ends of the range.
• Verify the lens mount and locking mechanism. Genuine lenses are calibrated to the mounts used on that projector series. After installation, you must hear the lock engage fully. A skewed image or soft edges are usually caused by an incompletely engaged lock, not by 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.