Know your gear
The 144-109101-01 4.96 to 7.69:1 High-Brightness Zoom Lens from Christie is compatible with the company's Boxer 4K30 and Mirage 304K projectors. It provides a 4.96 to 7.69:1 throw ratio, allowing the distance between the projector and the screen to be approximately 4.96 to 7.69x the width of the projected image.