Sharp XP-40ZL Zoom Standard-Throw Lens for 8 Models

Sharp Original Lens XP-40ZL Zoom is an OEM optical accessory for Sharp engineering projectors. It is a standard-throw lens (Standard Throw) with a throw ratio of 0.79-1.11:1. The factory compatibility list covers 8 models; simply verify the projector model and panel size before installation, with no need to improvise using adapter rings. The value of an OEM lens lies not in a few extra figures in the specification table, but in the fact that it is calibrated at the factory to the optical path and lens mount of that projector series: once fitted, the image circle, edge illumination, and focus 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 based on the manufacturer's official specifications. For mechanical dimensions, flange distance, and lens mount type not shown in the specifications table, please contact us with the projector model for verification. Ordering directly based on a similar model carries the risk of an incompatible fit.

2. Converting Throw Ratio into Installation Distance

Throw ratio is the ratio of installation distance to image width. This OEM zoom lens has a throw ratio of 0.79-1.11:1. A given image size corresponds to a range of installation distances, and the lens can focus at any distance within that range.

These are clear distances from the front surface of the lens to the screen and do not account for clearance for projector cooling at the rear or cable connections. They are calculated for a 16:10 image; actual values are subject to on-site measurement and the manufacturer's manual.

Image quality differs at the two ends of the zoom range: at the short end, the image is brighter and the edges are slightly softer; at the long end, the edges are sharper and brightness is slightly lower. When the venue allows, use the middle of the range. After installation, find the sharpest position using the focus ring, then fine-tune the lens shift.

3. Compatible Models (8 Models)

The following table is taken from the factory compatibility list. Brightness and resolution values have been populated from the model database; where unavailable, an em dash (—) is shown, with no assumptions made.

For models not included in the list, please send us photos of the projector nameplate and existing lens for verification—projector platforms from the same generation often share the same mount, but ordering based on a similar model is not worth the risk.

Throw Ratio by Projector Series

The rated throw ratio for the same XP-40ZL Zoom varies by projector series. When selecting a lens, use the value corresponding to the series of the projector in question.

4. Three Checks Before Replacement

• Confirm the projector panel and resolution. Original lenses are designed for a specific panel size. With different panel specifications, the image circle cannot cover the full image, causing vignetting or edge light loss once the lens is installed.
• Calculate the installation distance first. This lens has a rated throw ratio of 0.79-1.11:1. Use the table in Section 2 to calculate the distance for your installation space. A fixed-focus lens provides no adjustment margin, and even a zoom lens requires 10–20 cm of allowance at both ends of the range.
• Verify the lens mount and locking mechanism. Original lenses are calibrated to the mounts used in that projector series. After installation, you must hear the lens click into its locked position. A skewed image or soft edges are usually caused by the lock not being fully engaged, rather than a problem with the lens itself.

If you are unsure, take one photo of each nameplate—the projector and the existing lens—and send them to us. Verification against the physical hardware is the most reliable approach.