Panasonic ET-DLE085 Standard Throw Projector Lens: Compatible with PT-FRZ580C, PT-FRZ680C

Panasonic Original Lens ET-DLE085 is a genuine optical accessory for Panasonic installation projectors. It is a standard throw lens with a throw ratio of 0.782-0.977:1, designed for 0.67-inch 1DLP panels. The original compatibility list covers 30 projector models; simply verify your projector model and panel size before installation—no adapter rings needed. The value of an original lens isn't a few extra rows of numbers on a spec sheet, but the fact that it is calibrated at the factory to match the optical path and mount of that series: once installed, the image circle, edge illumination, and focus travel all match design values, so you don't need keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications are subject to the original manufacturer's specifications. For mechanical dimensions, flange focal distance, and mount type not shown in the spec table, please verify with us based on your projector model—ordering based on model similarity alone carries the risk of incompatibility.

2. Converting Throw Ratio to Installation Distance

Throw ratio is the ratio of installation distance to image width. This original lens is a zoom lens (0.782-0.977:1), so the same image size corresponds to a range of distances; as long as installation falls within this range, focus can be achieved.

The above figures are the net distance from the lens face to the screen, excluding rear ventilation and cabling space behind the projector body. Calculated for 16:10 aspect ratio; actual values are subject to on-site measurement and the original manufacturer's manual.

Image quality differs at the two ends of the zoom range: toward the near end the image is brighter with slightly softer edges; toward the far end the edges are sharper with slightly reduced brightness. Where space permits, it is recommended to position within the middle of the range. After installation, first find the sharpest point on the focus ring, then fine-tune the shift.

3. Compatible Models (30)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are filled in from the model database. Where data is unavailable, "—" is shown without speculation.

For models not on the list, please send us photos of the projector nameplate and the existing lens for verification—same-generation platforms often share mounts, but ordering based on model similarity alone is a risk not worth taking.

Throw Ratios Across Model Series

The same ET-DLE085 mounted on the following series has different nominal throw ratios; selection should be based on the actual series of your projector.

4. Three Things to Confirm Before Replacement

• Panel size must match. The ET-DLE085 is designed for 0.67-inch 1DLP panels. Projectors with different panel sizes or resolutions may experience image circle and edge illumination issues even if the mount fits.
• Calculate installation distance first. This lens has a nominal throw ratio of 0.782-0.977:1; use the table in Section 2 to determine the distance for your venue dimensions. Prime lenses have no margin, and even with zoom, allow 10–20 cm at both ends.
• Check the mount and locking mechanism. Original lenses are calibrated to the mount of that series; after installation, you must hear the lock click into place. Image skew or soft edges are usually caused by incomplete locking, not the lens itself.

If unsure, take a photo of the projector nameplate and the existing lens nameplate and send them to us—verification against the actual hardware is the safest approach.