Canon RS-IL03WF Ultra Wide Fixed Short-Throw Lens Guide: 21-Model Compatibility

Canon OEM Lens RS-IL03WF Ultra Wide Fixed is an OEM optical accessory for Canon professional projectors. It is a short-throw (Short Throw) lens with a 0.80:1 throw ratio. The manufacturer's compatibility list covers 21 models. Before installation, verify the projector model and panel size; there is no need to rely on adapter rings. The value of an OEM lens lies not in the additional specification figures, but in its factory calibration to the optical path and lens mount of that projector series. Once installed, the image circle, edge illumination, and focusing range are all at their design values, so keystone correction is not needed to compensate for image quality.

I. Lens Specifications

The above specifications are subject to the manufacturer's specifications. For mechanical dimensions, flange distance, and mount type not listed above, please contact us with the projector model. Placing an order based solely on a similar model carries the risk that the lens will not fit.

II. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This OEM lens is fixed-focus (0.80:1), so the installation distance varies linearly with image size and offers no adjustment leeway. It must be measured accurately before installation.

The values above represent the clear distance from the front surface of the lens to the screen and do not include space for rear projector ventilation or cable connections. Calculations are based on a 16:10 image; actual values must be confirmed through on-site measurements and the manufacturer's manual.

III. Compatible Models (21 Units)

The table below is taken from the manufacturer's compatibility list. Brightness and resolution are populated from the model database; entries that cannot be obtained are shown as — and are not estimated.

To verify compatibility with a model not on the list, send us photos of the projector nameplate and existing lens. Same-generation platforms often share the same mount, but ordering solely based on a similar model is not worth the risk.

Throw Ratios by Projector Series

The nominal throw ratio of the same RS-IL03WF Ultra Wide Fixed lens varies by projector series. Select the value based on the actual projector series.

IV. Three Checks Before Replacement

• Confirm the projector panel and resolution. The OEM lens is designed for a specific panel size. If the panel specifications differ, the image circle cannot cover the full image, resulting in vignetting or edge illumination loss after installation.
• Calculate the installation distance first. This lens has a nominal throw ratio of 0.80:1. Apply the table in Section II to your venue's dimensions. A fixed-focus lens offers no adjustment leeway, and even a zoom lens requires 10–20 cm of clearance at both ends.
• Check the mount and locking mechanism. The OEM 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 rather than 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 physical equipment is the most reliable approach.