Panasonic ET-DLE055 Short-Throw Lens for 23 Models including PT-FRZ580C, PT-FRZ680C, PT-FRZ99C

Panasonic Genuine Lens ET-DLE055 is an OEM optical accessory for Panasonic engineering projectors. It is a short-throw (Short Throw) fixed-focus lens with a throw ratio of 0.785:1 for a 0.67 1DLP-inch panel. The official compatibility list covers 23 models. Before installation, simply verify the projector model and panel size; there is no need to rely on adapter rings. The value of a genuine lens lies not in the extra figures in the specification sheet, but in the fact that it is calibrated at the factory to the optical path and mount of that projector series. Once installed, the image circle, edge illumination, and focusing range are all at their designed values, so there is no need to use keystone correction to compensate for image quality.

I. Lens Specifications

Brand	Panasonic (Panasonic)
Lens Model	ET-DLE055
Throw Ratio	0.785:1 (Fixed Focus)
Product Type	Short-throw (Short Throw)
Compatible Panel	0.67 1DLP-inch panel
Models Covered	23 models
Warranty	12 months; after-sales service is available for damage not caused by the user, based on the date on the shipping document

The above specifications are subject to the official specifications. Mechanical dimensions, flange distance, and mount type are not shown in the specification table; please contact us with the projector model so we can verify them. Ordering based solely on a similar model carries the risk that the lens will not fit.

II. Installation Distance Calculated from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This genuine lens is fixed-focus (0.785:1 (Fixed Focus)), so the installation distance varies linearly with image size, with no adjustment margin. Accurate measurements are therefore essential before installation.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	Approx. 1.69 m
120 inches	2.58 m	Approx. 2.03 m
150 inches	3.22 m	Approx. 2.53 m
200 inches	4.30 m	Approx. 3.38 m

These figures show the clear distance from the front of the lens to the screen and do not include space for cooling and cable connections at the rear of the projector. They are calculated for a 16:10 image; actual values should be confirmed through on-site measurement and in accordance with the manufacturer's manual.

III. Compatible Models (23 Models)

The table below is taken from the official compatibility list. Brightness and resolution have been populated from the model database; where the data are unavailable, “—” is shown and no values are inferred.

Model	Brightness	Resolution
PT-FRZ580C	5400 lumens	WUXGA,1920 x 1200
PT-FRZ680C	6200 lumens	WUXGA,1920 x 1200
PT-FRZ99C	10000 lumens	WUXGA,1920 x 1200
PT-FRZ78C	7200 lumens	WUXGA, 1920 x 1200
PT-FRW73C	7200 lumens	WXGA, 1280 x 800
PT-FRZ89C	8800 lumens	WUXGA,1920 x 1200
PT-FRZ79C	7200 lumens	WUXGA,1920 x 1200
PT-FRZ69C	6200 lumens	WUXGA,1920 x 1200
PT-FRZ98C	10000 lumens	WUXGA, 1920 x 1200
PT-FRW93C	10000 lumens	WXGA, 1280 x 800
PT-FRX110C	11000 lumens	WUXGA,1920 x 1200
PT-FRZ575C	—	—
PT-FRQ100C	10000 lumens	WQXGA 2715 x1697
PT-FRZ120C	12000 lumens	WUXGA,1920 x 1200
PT-FRZ88C	8800 lumens	WUXGA, 1920 x 1200
PT-FRQ080C	8000 lumens	WQXGA 2715 x1697
PT-FRZ86C	8600 lumens	WUXGA,1920 x 1200
PT-FRQ86C	8600 lumens	4K, 3840 x 2160
PT-FRZ76C	—	—
PT-RCQ10	10000 lumens	WQXGA 2715 x1697
PT-RCQ80	8000 lumens	WQXGA 2715 x1697
PT-RZ790	7000 lumens	WUXGA,1920 x 1200
PT-RZ690	6000 lumens	WUXGA,1920 x 1200

For use with a model not on the list, please send us photos of the projector nameplate and the existing lens so we can verify it. Projectors based on the same platform often share a mount, but the risk of ordering based on a similar model is not worth taking.

Throw Ratio by Model Series

The nominal throw ratio varies when the same ET-DLE055 is used with the following projector series, so select the value that applies to the series of your actual projector.

Model Series	Throw Ratio
—	0.785:1 (Fixed Focus)

IV. Three Checks Before Replacement

• The panel size must match. ET-DLE055 is designed for a 0.67 1DLP-inch panel. On a projector with a different panel size or resolution, the image circle and edge illumination may be unsuitable even if the lens fits the mount.
• Calculate the installation distance first. This lens has a nominal throw ratio of 0.785:1 (Fixed Focus). Use the table in Section II to calculate the distance based on the dimensions of your site. A fixed-focus lens has no adjustment margin, and a zoom lens should also allow 10–20 cm at both ends.
• Verify the mount and locking mechanism. The genuine lens is calibrated to the mount of the relevant projector series. After installation, you must hear the lens lock into place. 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, then send them to us. Verification against the actual items is the safest approach.