Panasonic ET-EMT750 Long Throw Lens Fits 19 Projector Models

Panasonic Original Lens ET-EMT750 is an OEM optical accessory for Panasonic business projectors. It is a long-throw (Long Throw) lens with a throw ratio of 2.10-4.14:1, designed for 1.0" 3LCD-inch panels. The factory compatibility list covers 19 models, so before installation, simply verify the projector model and panel size without having to improvise with an adapter ring. The value of an original 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 fitted, the image circle, edge illumination, and focus travel are all at their designed values, so there is no need to use keystone correction to compensate for image quality.

1. Lens Specifications

The above specifications follow the manufacturer's official specifications. For mechanical dimensions, flange distance, and mount type not shown in the specification table, please contact us with the projector model. Ordering solely on the basis of a similar model carries the risk that the lens will not fit.

2. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of the installation distance to the image width. This original lens is a zoom lens (2.10-4.14:1). A given image size corresponds to a range of installation distances, and the lens can focus at any distance within that range.

The distances above are clear distances from the front surface of the lens to the screen and exclude the space required for cooling and cable connections behind the projector. They are calculated for a 16:10 image; actual values should be verified on site and in accordance with the manufacturer's manual.

Image quality varies between the two ends of the zoom range: near the near end, the image is brighter and the edges are slightly softer; near the far end, the edges are sharper and brightness is slightly lower. Where the venue allows, we recommend positioning the lens near the middle of the range. After installation, first turn the focus ring to find the sharpest image, then fine-tune the lens shift.

3. Compatible Models (19 Models)

The following table is taken from the factory compatibility list. Brightness and resolution are populated from the model database; where data is unavailable, “—” is shown, with no estimates made.

To verify whether a model outside the list can be used, please send us photos of the projector nameplate and the existing lens—platforms from the same generation often share the same mount, but the risk of ordering based solely on a similar model is not worth taking.

Throw Ratios by Model Series

The rated throw ratio differs when the same ET-EMT750 is used with the following series. Select the value based on the actual projector series.

4. Three Things to Confirm Before Replacement

• Make sure the panel size matches. ET-EMT750 is designed for 1.0" 3LCD-inch panels. Projectors with a different panel size or resolution may experience problems with the image circle and edge illumination, even if the lens fits the mount.
• Calculate the installation distance first. This lens has a rated throw ratio of 2.10-4.14:1; apply the table in Section 2 to your venue's dimensions. Fixed-focus lenses offer no adjustment margin, and zoom lenses should also leave a 10–20 cm margin at both ends of the range.
• Verify the mount and locking mechanism. The original lens is calibrated to the mount used by 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 nameplate on the existing lens, then send them to us. Verification against the physical items is the most reliable approach.