Panasonic ET-ELT22 Long Throw Projector Lens: Compatible with PT-MZ882C, PT-MZ880C, PT-MZ780CL

Panasonic Original Lens ET-ELT22 is a genuine optical accessory for Panasonic professional projectors. It is a long-throw lens with a throw ratio of 2.72-4.48:1, designed for 0.76" 3LCD panels. The original compatibility list covers 14 models; before installation, simply verify the projector model and panel size — no adapter rings needed. The value of an original lens isn't a few extra rows in a spec sheet, but 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 focus travel all match design values, so you don't need keystone correction to compensate for image quality.

1. Lens Specifications

Brand	Panasonic
Lens Model	ET-ELT22
Throw Ratio	2.72-4.48:1
Product Type	Long Throw
Compatible Panel	0.76" 3LCD
Compatible Models	14
Warranty	12 months; after-sales service available for non-human damage, based on the date on the shipping document

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 (2.72-4.48:1), so the same image size corresponds to a range of distances; as long as installation falls within this range, focus can be achieved.

Image Size	Image Width	Required Installation Distance
100 inches	2.15 m	Approx. 5.85 – 9.63 m
120 inches	2.58 m	Approx. 7.02 – 11.56 m
150 inches	3.22 m	Approx. 8.77 – 14.45 m
200 inches	4.30 m	Approx. 11.70 – 19.26 m

The above figures are the clear distance from the lens front to the screen, excluding rear ventilation and cabling space. 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, we recommend positioning in the middle of the range; after installation, first find the sharpest point on the focus ring, then fine-tune the shift.

3. Compatible Models (14)

The table below is taken from the original manufacturer's compatibility list; brightness and resolution are filled in from the model database, with "—" where unavailable — no speculation.

Model	Brightness	Resolution
PT-MZ882C	8200 lumens	WUXGA, 1920 x 1200
PT-MZ880C	8000 lumens	WUXGA, 1920 x 1200
PT-MZ780CL	7000 lumens	WUXGA, 1920 x 1200
PT-MZ680CL	6000 lumens	WUXGA, 1920 x 1200
PT-MZ782C	7500 lumens	WUXGA, 1920 x 1200
PT-MZ682C	6500 lumens	WUXGA, 1920 x 1200
PT-EZ770Z	6500 lumens	WUXGA, 1920 x 1200
PT-EW730Z	7000 lumens	WXGA, 1280 x 800
PT-EX800Z	7500 lumens	XGA, 1024 x 768
PT-EZ590	5400 lumens	WUXGA, 1920 x 1200
PT-EW650	5800 lumens	WXGA, 1280 x 800
PT-EX620	6200 lumens	XGA, 1024 x 768
PT-EW550	5000 lumens	WXGA, 1280 x 800
PT-EX520	5300 lumens	XGA, 1024 x 768

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 is a risk not worth taking.

Throw Ratios Across Model Series

The same ET-ELT22 mounted on the following series has different nominal throw ratios; selection should be based on the actual series of your projector.

Model Series	Throw Ratio
—	2.72-4.48:1

4. Three Things to Confirm Before Replacement

• Panel size must match. The ET-ELT22 is designed for 0.76" 3LCD panels. For projectors with different panel sizes or resolutions, even if the mount fits, the image circle and edge illumination will be problematic.
• Calculate installation distance first. This lens has a nominal throw ratio of 2.72-4.48:1; use the table in Section 2 to match your venue dimensions. Prime lenses have no margin; even with zoom, allow 10–20 cm at both ends.
• Verify the mount and locking. The original lens is calibrated to the mount of that projector series; after installation, you must hear the lock click into place. Image skew and soft edges are mostly due to 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.