Barco R9852092 Zoom Telephoto Projector Lens for XDL-4K30, XDL-4K60, XDL-4K75

Barco Original Lens R9852092 Zoom is a genuine optical accessory for Barco engineering projectors. It is a long-throw (Long Throw) lens with a throw ratio of 1.80-2.40:1. The manufacturer’s compatibility list covers 3 models; before installation, simply verify the projector model and panel size—there is no need to make do with adapter rings. The value of an original lens lies not in the extra figures it adds to a specification sheet, but in the fact that it is factory-calibrated to the optical path and mount of that projector series: once installed, the image circle, edge illumination, and focus travel all match their design values, so there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

These specifications are subject to the manufacturer’s original specifications. For mechanical dimensions, flange distance, and mount type not shown in the specification table, please verify them with us based on the projector model. Ordering solely because the model numbers are similar carries the risk that the lens will not fit.

II. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (1.80-2.40:1), so a given image size corresponds to a range of distances; any position within that range can be focused during installation.

These are net distances from the front face of the lens to the screen and do not allow for cooling and wiring space at the rear of the projector. They are calculated for a 16:10 image; actual distances should be verified on site and in accordance with the manufacturer’s manual.

Image quality varies at the two ends of the zoom range: at the short-throw end, the image is brighter and the edges are slightly softer; at the long-throw end, the edges are sharper and brightness drops slightly. Where the venue allows, we recommend positioning the lens near the middle of the range, then finding the sharpest setting on the focus ring after installation and fine-tuning the lens shift.

III. Compatible Models (3 units)

The following table is taken from the manufacturer’s compatibility list. Brightness and resolution have been populated from the model database; values that cannot be obtained are shown as “—”, with no assumptions made.

To determine whether models outside the list can be used, please send us photos of the projector nameplate and the existing lens for verification. Platforms from the same generation often share mounts, but the risk of ordering based on a similar model name is not worth taking.

Throw Ratio by Model Series

When the same R9852092 Zoom is installed on the series listed below, its nominal throw ratio varies. Use the value for the actual projector series when selecting a lens.

IV. Three Checks Before Replacement

• Confirm the projector panel and resolution. The original 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. Use the table in Section 2 to calculate the distance for your venue based on the nominal throw ratio of 1.80-2.40:1. A fixed-focus lens offers no adjustment margin, and even a zoom lens should have 10–20 cm of extra room at both ends.
• Check the mount and locking mechanism. The original lens is calibrated to the mount for that projector series. After installation, you must hear it lock into place. 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 nameplate on the existing lens and send them to us. Verification against the physical products is the safest approach.