Barco EN14 Long Zoom Lens Compatibility: CNHD-81B, CNWU-81B, F70-W6, F70-W8, F90-W13, FS70-W6

Barco OEM Lens EN14 Long Zoom is a factory-supplied optical accessory for Barco engineering projectors. It is a long-throw (Long Throw) lens with a throw ratio of 2.37-3.79:1. The manufacturer's compatibility list covers 6 projector models, so simply verify the projector model and panel size before installation—no adapter ring workaround is needed. The value of an OEM lens lies not in the extra figures in its specifications, but in the fact that it is calibrated at the factory to the optical path and mount of that projector series: 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.

I. Lens Specifications

These specifications are subject to the manufacturer's official specifications. For mechanical dimensions, flange distance, and mount type not listed in the table, please verify them with us using the projector model; ordering directly based on a similar model carries the risk that the lens will not fit.

II. Calculating Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This OEM lens is a zoom lens (2.37-3.79:1), so a given image size corresponds to a range of installation distances; the image can be focused anywhere within that range.

These figures represent the clear distance from the front surface of the lens to the screen and do not include space behind the projector for cooling and cable connections. They are calculated for a 16:10 image; actual distances are subject to on-site measurement and the manufacturer's manual.

Image quality differs at both 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 decreases slightly. When the venue allows, the middle of the range is recommended. After installation, first find the sharpest position using the focus ring, then fine-tune the lens shift.

III. Compatible Projector Models (6 Models)

The following table is taken from the manufacturer's compatibility list. Brightness and resolution are populated from the model database; values that cannot be found are marked “—” and are not estimated.

To check whether a model outside the list can be used, send us photos of the projector nameplate and the existing lens for verification—platforms from the same generation often share a mount, but ordering based solely on a superficially similar model is not worth the risk.

Throw Ratio by Model Series

The rated throw ratio of the same EN14 Long Zoom lens varies across the series listed below; use the value for the actual projector series when selecting a lens.

IV. Three Checks Before Replacement

• Confirm the projector imaging panel and resolution. OEM lenses are designed for specific panel sizes. If the panel specifications differ, the image circle cannot cover the full image, resulting in vignetting or light loss at the edges.
• Calculate the installation distance first. This lens has a rated throw ratio of 2.37-3.79:1; use the table in Section II with the dimensions of your venue. A fixed-focus lens provides no adjustment margin, while a zoom lens also requires 10–20 cm of clearance at both ends of the range.
• Verify the mount and locking mechanism. The OEM lens is calibrated to the mount of that projector series, and you must hear it lock into place after installation. 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 actual hardware is the most reliable approach.