This lens has a 5.66-10.8:1 throw ratio when used on a 4K7-HS or 4K10-HS. 

Our 1DLP lenses provide a wide range of throw ratios delivering full versatility for any project. Easily adjust vertical or horizontal offset through our motorized interface. Lens position can be saved to projector memory and recalled as required.

Please refer to the Christie Projector Lens Calculator or the lens throw distance ratio PDF under ‘Downloads’ on the respective projector pages for specific lens throw distance formulas.