Barco R9801722 GLD Zoom Lens: F80-4K12, F80-4K7, F80-4K9, F80-Q12, F80-Q7, F80-Q9

Barco Original Lens R9801722 GLD Zoom is an original optical accessory for Barco professional projectors. It is a standard-throw (Standard Throw) lens with a 1.06-1.43:1 throw ratio. The official compatibility list covers 6 models; before installation, simply verify the projector model and panel size—no need to improvise with adapter rings. The value of an original lens lies not in extra rows of specifications, but in the fact that it is calibrated at the factory to the optical path and mount of that model series. Once installed, the image circle, edge illumination, and focusing range all match the design values, so there is no need to compensate for image quality with keystone correction.

1. Lens Specifications

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

2. Calculating Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (1.06-1.43:1), so a given image size corresponds to a range of distances, and focus can be achieved anywhere within that range during installation.

These distances represent the clear distance from the front of the lens to the screen and do not include space for cooling and cable connections at the rear of the projector. The figures are based on a 16:10 image; in practice, follow on-site measurements and the manufacturer’s manual.

Image quality differs at both ends of the zoom range: the image is brighter and the edges slightly softer near the close end, while the edges are crisper and brightness is slightly lower near the far end. Where the venue allows, use the middle of the range. After installation, find the sharpest position using the focus ring, then fine-tune the lens shift.

3. Compatible Models (6 Models)

The following table is taken from the official compatibility list. Brightness and resolution are reproduced from the model database; unavailable entries are marked “—” and have not been guessed.

To check whether a model outside the list can be used, send us photographs of the projector nameplate and the existing lens. Platforms from the same generation often share the same mount, but ordering based only on a similar model number is not worth the risk.

Throw Ratios for Different Model Series

The nominal throw ratio of the same R9801722 GLD Zoom varies by model series. Use the value for the series of the actual projector when selecting a lens.

4. Three Checks Before Replacement

• Confirm the projector chipset and resolution. Each original lens is designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the full panel, resulting in vignetting or light loss at the edges after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.06-1.43:1. Use the table in Section 2 with the dimensions of your venue. Prime-focus lenses offer no adjustment margin, and even a zoom lens should have 10–20 cm left at both ends of its range.
• Verify the mount and locking mechanism. The original lens is calibrated to the mount of that model series. After installation, you must hear the lock engage. A skewed image and soft edges are usually caused by incomplete locking rather than a fault in the lens itself.

If you are unsure, take one photograph of the projector nameplate and one of the existing lens nameplate and send them to us. Verification against the physical equipment is the most reliable approach.