Barco R9802187 GC Zoom Telephoto Lens Guide: Compatible with G100-W16 G100-W19 G100-W22 G100-W25

Barco Original Lens R9802187 GC Zoom is an original optical accessory for Barco engineering projectors. It is a long-throw lens with a throw ratio of 7.20-10.80:1. The factory compatibility list covers 4 models; before installation, simply verify the projector model and panel size—no need to make do with an adapter ring. The value of an original lens lies not in a few extra rows of specifications, but in the fact that it is factory-calibrated to the optical path and mount of that model series: once installed, the image circle, edge illumination, and focusing travel are all at their designed values, with no need to compensate for image quality using keystone correction.

1. Lens Specifications

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

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (7.20-10.80:1), so the same image size corresponds to a range of installation distances, and the lens can be brought into focus anywhere within that range.

The values above represent the clear distance from the front surface of the lens to the screen and do not include space behind the projector for ventilation and cable connections. They are calculated for a 16:10 image; actual values are subject to on-site measurements and the original manufacturer's manual.

Image quality differs at the two ends of the zoom range: near the close end, the image is brighter and the edges are slightly softer; near the far end, the edges are sharper and brightness is slightly reduced. Where site conditions allow, it is recommended to position the lens in the middle of the range. After installation, first find the sharpest setting on the focus ring, then fine-tune the lens shift.

3. Compatible Models (4 Models)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are populated from the model database, and unavailable entries are marked “—” without speculation.

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

Throw Ratios for Different Model Series

The rated throw ratio differs when the same R9802187 GC Zoom is installed on the series listed below, so use the value corresponding to the actual projector series when selecting a lens.

4. Three Things to Confirm Before Replacement

• Confirm the projector's imaging 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 area, resulting in vignetting or edge light loss when installed.
• Calculate the installation distance first. This lens has a rated throw ratio of 7.20-10.80:1. Apply the table in Section 2 to your site's dimensions; fixed-focus lenses provide no adjustment margin, and even zoom lenses should leave a 10–20 cm margin at both ends.
• Verify the mount and locking mechanism. The original lens is calibrated for the mount of that model series, and you must hear it lock into place after installation; a skewed image or soft edges are usually caused by incomplete locking, rather than a problem with 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 actual units is the most reliable approach.