The Elmo QT271AS is a high-quality industrial lens for the micro-mount lipstick-type cameras QN42H and QN42HL. It is a wide angle 1.8 mm f/2.7 for 1/4-inch CCD cameras. It provides approximately 115.9° horizontal and 86.2° vertical angles of view. Its minimum object distance is a scant 10 mm. or less than one half inch (0.39 inches).