Sharp XP-56ZL Ultra Long Zoom Lens: Fits XP-A155U-B XP-A155U-W XP-A175U-B XP-A175U-W XP-A201U-B

Sharp Genuine Lens XP-56ZL Ultra Long Zoom is a genuine optical accessory for Sharp professional projectors. It is a long-throw (Long Throw) lens with a throw ratio of 3.95-7.51:1. The official compatibility list covers 5 models. Before installation, simply verify the projector model and panel size—there is no need to make do with an adapter ring. The value of a genuine lens lies not in the extra rows of figures in the specification sheet, but in the fact that it is calibrated at the factory to the optical path and lens mount of that projector series: once installed, the image circle, edge illumination, and focusing travel are all at their design values, so there is no need to use keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications are subject to the manufacturer's official specifications. For mechanical dimensions, flange distance, and lens mount type not shown in the specification table, please verify them with us using the projector model. Ordering solely on the basis of a similar model risks a fitment problem.

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This genuine lens is a zoom lens (3.95-7.51:1), so a given image size corresponds to a range of installation distances, and the lens can focus anywhere within that range.

The above figures represent the clear distance from the front element of the lens to the screen, excluding space behind the projector for ventilation and cable connections. They are calculated for a 16:10 image; actual distances should be based on on-site measurements and the manufacturer's manual.

Image quality differs at the two ends of the zoom range: toward the close end, the image is brighter and the edges are slightly softer; toward the far end, the edges are sharper and brightness decreases slightly. When the venue allows, using the middle of the range is recommended. After installation, first find the sharpest setting on the focus ring, then fine-tune the lens shift.

3. Compatible Models (5 Units)

The following table is taken directly from the official compatibility list. Brightness and resolution are populated from the model database; where the data cannot be obtained, “—” is shown, with no estimates made.

To determine whether a model outside the list is compatible, please send us the projector nameplate and a photo of the existing lens for verification. Platforms from the same generation often share the same mount, but it is not worth taking the risk of ordering on the basis of a similar model.

Throw Ratios by Model Series

The rated throw ratio of the same XP-56ZL Ultra Long Zoom varies when used with the series listed below, so select the value based on the series of the actual projector.

4. Three Checks Before Replacement

• Confirm the projector chip and resolution. Genuine lenses are designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the panel, causing vignetting or light loss at the edges after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 3.95-7.51:1; use the table in Section 2 to apply it to your venue's dimensions. A fixed-focus lens provides no adjustment margin, and even a zoom lens requires 10–20 cm of adjustment margin at both ends.
• Check the mount and locking mechanism. The genuine 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.