This middle throw zoom lens is ideal for projecting large, high-quality images. Supports screen sizes from 50” to 500". This is the standard throw lens for Pro L projectors up to 8,500 lumens. Interchangeable lens  — for Pro L projectors up to 8,500 lumens and Pro G7000 Series projectors Wide lens shift  — for added flexibility High-quality design  — 50” to 1000" screen size support; 1.7 to 2.3 F-number; 24 mm to 38.2 mm focal length Zoom ratio  — 1 to 1.6 Weight  — 2.6 lbs (1200 g) Up to 8,500-lumen projectors  — WUXGA/WXGA 1.42 to 2.28 throw ratio; lens shift—vertical: -67 percent to +67 percent, horizontal: -30 percent to +30 percent