
Designed for use with single-chip DLP projectors, the Panasonic ET-DLE080 Power Zoom Lens allows you to change the focal length, which enables a range of projection distances. For this lens, the focal distance is 11.8 - 14.6mm. It has a zoom ratio of 1.2:1 and a fairly short-throw ratio of 0.8 - 1.0:1 when paired with a projector that has a 4:3 aspect ratio. The throw ratio will vary slightly depending on whether the aspect ratio is 4:3, 16:10 or 16:9. Installing a power zoom lens affords greater flexibility since you can alter the projection distance without actually moving the projector.