Ricoh 512915 Wide Zoom #A2 Standard Throw Lens for PJ WUL6280 and PJ WXL6280

Ricoh OEM Lens 512915 Wide Zoom #A2 is an original optical accessory for Ricoh engineering projectors. It is a standard-throw (Standard Throw) lens with a throw ratio of 0.95-1.22:1. The OEM compatibility list covers 2 models. Before installation, simply verify the projector model and panel size; there is no need to improvise with an adapter ring. The value of an OEM lens lies not in the additional figures in its specification sheet, but in the fact that it is calibrated at the factory to the optical path and mount of projectors in that series. Once installed, the image circle, edge illumination, and focus travel all meet the intended design values, eliminating the need to compensate for image quality with keystone correction.

I. Lens Specifications

These specifications are subject to the OEM specifications. For mechanical dimensions, flange distance, and mount type not shown in the specification table, please contact us with the projector model. Ordering based solely on a similar model carries the risk that the lens will not fit.

II. Calculating Installation Distance from the Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This OEM lens is a zoom lens (0.95-1.22:1), so each image size corresponds to a range of distances, and it can focus at any distance 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 cooling and cable connections. They are calculated for a 16:10 image; actual distances should be verified through on-site measurements and the OEM manual.

Image quality differs at the two extremes of the zoom range: the image is brighter with slightly softer edges toward the close end, while the edges appear sharper with slightly lower brightness toward the long end. 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.

III. Compatible Models (2 Models)

The following table is taken from the OEM compatibility list. Brightness and resolution are populated from the model database; where unavailable, “—” is shown rather than estimated.

To determine whether a model outside the list can be used, send us photos of the projector nameplate and existing lens for verification. Although platforms from the same generation often share mounts, the risk of ordering based solely on a similar model is not worth taking.

Throw Ratios by Model Series

The rated throw ratio varies when the same 512915 Wide Zoom #A2 is installed on the series listed below. Use the value corresponding to the actual projector series when selecting a lens.

IV. Three Checks Before Replacement

• Confirm the projector chip and resolution. OEM lenses are designed for specific panel sizes. When the panel specifications differ, the image circle cannot cover the full area, resulting in vignetting or light loss at the edges after installation.
• Calculate the installation distance first. This lens has a rated throw ratio of 0.95-1.22:1. Use the table in Section II to calculate the distance based on the dimensions of your installation site. A fixed-focus lens offers no adjustment margin, while a zoom lens should still allow for 10–20 cm of margin at both ends.
• Verify the mount and locking mechanism. The OEM lens is calibrated to the mount of projectors in that series. You must hear the lens click into the locked position after installation. A skewed image or soft edges are usually caused by incomplete locking, not a fault in the lens itself.

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