Barco EN43 Zoom Standard Throw Projector Lens: Compatible with 14 Models Including F70-4K4

Barco Original Lens EN43 Zoom is a genuine optical accessory for Barco installation projectors, belonging to the standard throw category with a throw ratio of 1.20-1.70:1. The original compatibility list covers 14 projector models; simply verify against the projector model and panel size before installation—no adapter rings needed. The value of an original lens isn't in a few extra rows of numbers on a spec sheet, but in the fact that it is calibrated at the factory to the optical path and mount of that series: once installed, the image circle, edge illumination, and focus travel all match design values, so you don't need keystone correction to compensate for image quality.

1. Lens Specifications

Brand	Barco
Lens Model	EN43 Zoom
Throw Ratio	1.20-1.70:1
Product Type	Standard Throw
Compatible Models	14
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 based on your projector model—ordering based on model similarity alone carries the risk of incompatibility.

2. Throw Ratio and Installation Distance

Throw ratio is the ratio of installation distance to image width. This original lens is a zoom lens (1.20-1.70:1), 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. 2.58 – 3.65 m
120 inches	2.58 m	Approx. 3.10 – 4.39 m
150 inches	3.22 m	Approx. 3.87 – 5.48 m
200 inches	4.30 m	Approx. 5.16 – 7.31 m

The above figures are the clear distance from the lens face to the screen, excluding rear ventilation and cabling space behind the projector. 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. If the venue allows, it is recommended to land in the middle of the range; after installation, first find the sharpest point on the focus ring, then fine-tune the shift.

3. Compatible Models (14)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are filled in from the model database, with "—" where unavailable—no speculation.

Model	Brightness	Resolution
F70-4K4	—	2560x1600
F70-4K6	5400 lumens	2560x1600
F70-4K8	—	2560x1600
F90-4K13	—	2560x1600
FL40-4K	3000 lumens	2560x1600
FL40-4K MKII	3000 lumens	2560x1600
FL40-WU	3200 lumens	1920x1200
FL40-WU MKII	3200 lumens	1920x1200
FS40-4K	3000 lumens	2560x1600
FS40-4K MKII	3000 lumens	2560x1600
FS40-WU	3200 lumens	1920x1200
FS40-WU MKII	3200 lumens	1920x1200
FS70-4K4	—	2560x1600
FS70-4K6	5400 lumens	2560x1600

For models not on the list, please send us a photo of the projector nameplate and the existing lens for verification—same-generation platforms often share mounts, but the risk of ordering based on model similarity alone isn't worth it.

Throw Ratios Across Model Series

The same EN43 Zoom mounted on the following series has different nominal throw ratios; selection should be based on the actual series of your projector.

Model Series	Throw Ratio
—	1.20-1.70:1

4. Three Things to Confirm Before Replacement

• Confirm the projector chip and resolution. Original lenses are designed for specific panel sizes; if the panel specification differs, the image circle cannot cover it, resulting in vignetting or edge light loss after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 1.20-1.70:1; use the table in Section 2 to map it to your venue dimensions. Prime lenses have no margin, and even with zoom you should allow 10–20 cm at both ends.
• Verify the mount and locking. Original lenses are calibrated to the mount of that series; after installation you must hear the lock engage. Image skew or soft edges are usually caused by incomplete locking, not 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.