Barco R9803071 ILD Short Zoom Standard-Throw Lens for 9 Models

Genuine Barco Lens R9803071 ILD Short Zoom is a factory-original optical accessory for Barco engineering projectors, featuring a standard throw ratio of 0.80-1.00:1. The official model compatibility list covers 9 projector models. Before installation, simply verify the projector model and panel size; there is no need to resort to adapter rings. The value of a factory-original lens lies not in the extra numbers in a specification sheet, but in the fact that it is calibrated at the factory to the optical path and lens mount of that model series. Once installed, the image circle, edge illumination, and focus travel all meet their design values, eliminating the need to use keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications are based on the manufacturer's official specifications. Mechanical dimensions, flange distance, and mount type are not shown in the specification table; please verify them with us according to your projector model. Ordering solely based on a similar model carries the risk of an incompatible fit.

2. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This factory-original lens is a zoom lens (0.80-1.00:1), so a given image size corresponds to a range of distances, and it can focus at any distance within that range.

The distances above are the clear distance from the front of the lens to the screen and do not account for space behind the projector for ventilation and cabling. Calculated for a 16:10 image, actual distances should be confirmed through on-site measurement and in accordance with the manufacturer's manual.

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

3. Compatible Models (9 Models)

The table below is taken from the official model compatibility list. Brightness and resolution are populated from the model database; unavailable values are shown as “—” and have not been estimated.

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

Throw Ratio by Model Series

The nominal throw ratio differs by series when the same R9803071 ILD Short Zoom is installed on the following series. Use the value corresponding to the actual projector series when selecting a lens.

4. Three Checks Before Replacement

• Confirm the projector's imaging chip and resolution.Each factory-original lens is designed for a specific panel size. When the panel specifications differ, the image circle cannot provide full coverage, resulting in vignetting or light loss at the edges.
• Calculate the installation distance first.This lens has a nominal throw ratio of 0.80-1.00:1. Use the table in Section 2 to calculate the distance for your venue. A fixed-focus lens offers no adjustment margin, while a zoom lens still requires 10–20 cm of margin at both ends.
• Verify the mount and locking mechanism.Each factory-original lens is calibrated to the mount of its model series. After installation, you must hear the lens click into the locked position. A skewed image or soft edges are usually caused by incomplete locking, not by a problem with the lens itself.

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