XL-7100TZ Projector Lens, 4.83–8.2:1, 19 Models: AL-FU715 FU10K FU805 FU705 FU905 SU16K SU15K SU13K

XL-7100TZ is a medium-to-long-throw lens for engineering projectors (Leli, Appotronics, Aurora), with a throw ratio of 4.83–8.2:1. It is compatible with 19 models across 2 model series. This guide presents the lens specifications, installation distances, model compatibility list, and replacement considerations in one place.

I. Lens Specifications

II. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This lens has a zoom range of 4.83–8.2:1, so a given image size corresponds to a range of installation distances. The lens can focus at any position 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 chassis for ventilation and cable connections. They are calculated for a 16:10 image; always verify against on-site measurements and the manual.

Image quality varies at the two ends of the zoom range: the image is brighter with slightly softer edges near the wide-angle end, while edges are sharper with slightly lower brightness near the telephoto end. Where venue conditions allow, use the middle of the range. After installation, first find the sharpest position using the focus ring, then fine-tune the lens shift—precise alignment is difficult when both controls are adjusted simultaneously.

III. Compatible Models (19 Models from Leli, Appotronics, and Aurora)

The following table is ordered by model production date, from newest to oldest. It includes the resolution, brightness, and zoom ratio of each model’s factory-standard lens, making it easy to identify the appropriate option for specific project requirements.

The zoom ratio indicates the zoom factor of the model’s factory-standard lens (upper limit of the original throw-ratio range ÷ lower limit), not the zoom range of the lens featured in this article.

Common Characteristics of These Models

The throw ratios of the factory-standard lenses for these 19 models generally vary depending on the lens. The 4.83–8.2:1 ratio of the model featured in this article represents an adjustment to the focal range, allowing different image sizes at the same projection distance—this is the direct reason for replacing the lens. Full lens-shift capability is also retained, so the image can still be aligned after adjusting the zoom range.

IV. Three Checks Before Replacement

• Verify the panel size. The panel specifications for this model have not yet been added. Please send us a photo of the chassis nameplate for confirmation.
• Check the interface and locking mechanism. Interfaces are generally interchangeable across platforms of the same generation, but the locking latch positions differ between generations. If the image appears skewed or the edges are soft after installation, the latch is usually not fully engaged rather than the lens itself being defective.
• Allow extra zoom margin. When measuring the installation distance, allow an additional 10–20 cm beyond both endpoints of the calculated range. Transportation and installation tolerances may place the lens outside the operating range.

For models not on the list, it is safest to send us photos of the chassis nameplate and original lens for verification—platforms of the same generation often share the same mount, but the risk of ordering solely based on a similar model designation is not worth taking.