The document describes a CCTV lens model AA-3580-DIV. It is a 3.5-8mm auto iris varifocal lens with a maximum aperture of F1.4 that covers a 1/3" image format. It has a unique design that provides high performance and sharp image quality. The lens has a stable performance and compact body with anti-pollution optical glass and no black corners or out of focus issues. It has dimensions of 34.5 x 43.2 x 45.7mm and weighs 59g.