For LU9715 and LU9915
To support optimal projector installation and performance in a wide range of environments, BenQ offers seven types of optical lenses. They range from short-throw to long-throw lenses and are made with premium glass materials for better focus and have large apertures for a brighter image.
Zoom Ratio: 1.3:1
Throw Ratio: 1.79-2.35:1 (PX9600)
Throw Ratio: 1.81-2.38:1 (PW9500)