Designed for use in applications where space is a limiting factor, Panasonic's ET-D75LE95 75mm Fixed Ultra-Short-Throw Projector Lens uses an optical system with an integrated mirror to deliver ultra-short throw distances. It has a fixed focal length of 7.5mm and an aperture of f/2.5, and enables you to project images with a diagonal size between 120 and 600" from a distance ranging between 3.1 and 17.4', depending on the projector being used. This lens is compatible with select Panasonic DLP projectors.