This lens provides a 1.2-1.5:1 throw ratio for any of the Christie LCD projectors listed below.  This means that the distance between the projector and the screen (throw distance) can be approximately 1.2-1.5 x the width of the projected image (screen).

For specific lens throw distance values, please refer to the Christie Lens Calculator on this website or the downloadable PDF throw distance chart located in the resource tab of this lens option or the resource tab of Christie projector to be used with this lens.