Wide Zoom Short-throw Lens 0.95 - 1.22:1 throw ratio, project images up to 70.5 feet wide with the BX-CAA01 wide zoom lens Designed for the Optoma ZU1300, ZU1100, ZU1050, ZU860, ZU750 and ZU660e DuraCore laser projectors 1.28x Motorized Zoom for flexible and simple installations. The BX-CAA01 wide zoom lens is ideal for rental installations or permanent install applications within the entertainment or museum sectors. This short-throw lens with a throw ratio of 0.95 1.22:1 can produce an image size of 50" up to 1000".