Lens system
| Aperture range (F-F) |
1.8 - 2.3 |
| Focal length range (f-f) |
45.6 - 73.8 mm |
| Throw ratio |
2.8-4.6:1 |
ET-ELT20 - Zoom Lens
Zoom Lens from Panasonic is designed for use with Panasonic's PT-EZ570, PT-EZ570L, PT-EW630, PT-EW630L, PT-EX600, PT-EX600L, PT-EW530, PT-EW530L, PT-EX500 and the PT-EX500L projectors. The lens makes it possible to vary the projection distance by changing the focal distance.