This document provides specifications for the AA-0550-DIV 5.0-50mm auto iris varifocal lens. The lens features a superior engineering design that provides stable performance, sharp image quality, and anti-pollution optical glass. It has a focal length range of 5.0-50mm, maximum aperture of F1.4, supports a 1/3" CCD format, and operating temperature range of -40 to 50 degrees Celsius. The lens measures 38.4 by 45.1 by 80.3mm and weighs 125.6 grams.