This is a wide-angle projection lens from Sony, model VPLL-3003. It features a focal length of 5.9mm and an aperture of f/1.85. This lens is compatible with the VPL-F Series projectors, offering a throw ratio of 0.33:1 for WUXGA resolution. It is also compatible with VPL-FH60, VPL-FH65, VPL-FHZ57, VPL-FHZ60, and VPL-FHZ65 models.