Interchangeable lens — for Pro L projectors up to 20,000 lumens and Pro G7000 Series projectors Convenient short-throw design — ideal for projecting a large image in narrow spaces Wide lens shift — for added flexibility High-quality design — up to 1000" screen size support; 2.0 to 2.1 F-number; 14.8 mm to 17.7 mm focal length Zoom ratio — 1 to 1.2 Weight — 6.8 lbs (3100 g) Up to 8,500-lumen projectors — WUXGA/WXGA 0.87 to 1.05 throw ratio; lens shift—vertical: -67 percent to +67 percent, horizontal: -30 percent to +30 percent 9,000- to 20,000-lumen projectors — WUXGA 0.64 to 0.77 throw ratio; lens shift—vertical: -60 percent to +60 percent horizontal: -18 percent to +18 percent Native 4K projector — 0.62 to 0.75 throw ratio; Vertical: -58% to +58% Horizontal: -16% to +16%