AF5D-5 is a sophisticated image stacking system. AF5D-5 aligns the projected images precisely, both horizontally and vertically to increase the brightness of any projected image by 2X (4X, 8X or even 16X). In comparison, brightness in comparison to a single projector at 12,000, AF5D-5 can easily achieve 12,000 lumens by 4 projectors with 3,000 lumens each, and at a fraction of the cost. You can create a 30,000 lumen projection system by using 10 projectors with 3,000 lumens and 5 AF5D-5. AF5D-5 works with your existing HD projectors, you can add brightness at anytime with the convenient setup of AF5D-5. Your entire high lumen projection system remains operational even if one projector bulb burns out. AF5D-5 is also capable of geometric correction to accommodate a curved screen or other large venue projections.