Designed for use with PT-MZ16K, PT-MZ13K, and PT-MZ10K LCD laser projectors, the ET-EMT800 90.3-162.6mm Zoom Lens from Panasonic enables you to vary the projection distance by adjusting the focal length. The lens offers a focal range of 90.3-162.6mm and an aperture range of f/1.85-2.39, providing a throw ratio of 4.14-7.4:1 in 16:10 mode, 4.12-7.4:1 in 16:9 mode, and 4.93-8.7:1 in 4:3 mode.