BenQ PW9500 Optional Lens Projector Large VenueWith seven types of optical lenses available and the functions as motorized zoom and focus and motorized lens shift, BenQ PW9500 offers great installtion and set up flexibility. It also gives you brilliant image performance with ultra high brightness, high contrast ratio and high resolution. Interchangeable color wheel system gives you a choice to boost mid tone colors for a more life like picture.