BENQ 5J.JAM37.021 Wide Zoom Lens, Compatibility PW9500, PX9600, Lens Shift Percentage Vertical: 0 to 50%, Horizontal: ±10%, Zoom Ratio 1.4. The BenQ 5J.JAM37.021 Wide Zoom Lens fits these following BenQ projectors. The aperture range of this projection lens is f/1.85 to f/2.5. The projector's 1.43x zoom lens.