Barco EN83 FLC Wide Zoom Standard Throw Projector Lens: Compatible with F400-N4K, FS400-N4K

Barco Original Lens EN83 FLC Wide Zoom is a genuine optical accessory for Barco large-venue projectors, belonging to the standard throw category, with a throw ratio of 1.10-1.61:1. The original compatibility list covers 6 projector models; before installation, simply verify against the projector model and panel size — no adapter rings needed. The value of an original lens isn't a few extra rows of numbers on a spec sheet, but that it is calibrated at the factory to the optical path and lens mount of that series: once mounted, the image circle, edge illumination, and focus travel are all at their design values, with no need to compensate image quality via keystone correction.

1. Lens Specifications

Brand	Barco
Lens Model	EN83 FLC Wide Zoom
Throw Ratio	1.10-1.61:1
Product Type	Standard Throw
Compatible Models	6
Warranty	12 months; after-sales service available for non-human damage, based on the date on the shipping document

The above specifications are subject to the original manufacturer's specifications. For mechanical dimensions, flange focal distance, and mount type not shown in the spec table, please verify with us against your projector model — ordering based on model similarity alone carries the risk of incompatibility.

2. Converting Throw Ratio to Installation Distance

Throw ratio is the ratio of installation distance to image width. This original lens is a zoom lens (1.10-1.61:1), so a given image size corresponds to a range of distances; as long as installation falls within this range, focus can be achieved.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	approx. 2.37 – 3.46 m
120 inches	2.58 m	approx. 2.84 – 4.15 m
150 inches	3.22 m	approx. 3.55 – 5.19 m
200 inches	4.30 m	approx. 4.73 – 6.92 m

The above figures are the clear distance from the lens front to the screen, excluding rear ventilation and cabling space. Calculated for 16:10 aspect ratio; actual values are subject to on-site measurement and the original manufacturer's manual.

Image quality differs at the two ends of the zoom range: toward the near end the image is brighter with slightly softer edges; toward the far end the edges are sharper with slightly reduced brightness. Where space permits, it is recommended to land in the middle of the range; after installation, first find the sharpest position on the focus ring, then fine-tune the shift.

3. Compatible Models (6)

The table below is taken from the original compatibility list; brightness and resolution are filled in from the model database, with "—" where unavailable, without speculation.

Model	Brightness	Resolution
F400-N4K	5000 lumens	4096x2160
FS400-N4K	5000 lumens	4096x2160
Heimdall	4500 lumens	4096x2160
Heimdall Cinemascope	4500 lumens	4096x2160
Heimdall+	4500 lumens	4096x2160
Heimdall+ Cinemascope	4500 lumens	4096x2160

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

Throw Ratio Across Model Series

The same EN83 FLC Wide Zoom mounted on the following series does not have the same nominal throw ratio; selection must use the value for the actual projector series.

Model Series	Throw Ratio
—	1.10-1.61:1

4. Three Things to Confirm Before Replacement

• Confirm the projector chip and resolution. Original lenses are designed for specific panel sizes; if the panel specifications differ, the image circle cannot cover it, resulting in vignetting or edge light falloff after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.10-1.61:1; apply the table in Section 2 to your venue dimensions. Prime lenses have no margin, and even zoom lenses should leave 10–20 cm at both ends.
• Verify the mount and locking. Original lenses are calibrated to the lens mount of that series; after installation you must hear the lock engage. Image skew and soft edges are mostly due to incomplete locking, not a problem with the lens itself.

If unsure, take a photo of the projector nameplate and the existing lens nameplate and send them to us — verification against the actual hardware is the most reliable approach.