2 - 4:1 throw ratio, project 1000" wide image from over 86m away Designed for the Optoma ZU1700, ZU1900, ZU2200 Ultra Bright DuraCore laser projectors Perfect for entertainment installations & building projection where distance projection is needed Full lens memory and a flexible 2x Zoom enable installation flexibility. The BX-CTA22 long throw lens is ideal for distance installations and live venue entertainment which require a long distance from projector to screen. This lens has a throw ratio of 2 - 4:1 and can produce an image size of 50" up to 1000".