The CS-mount 3.6-11mm Varifocal Lens is an automatic DC iris lens that is optimized and tuned for use with AIDA Imaging 4K 1/2.5" CMOS sensor industrial cameras. Its field of view ranges from 71.4 to 23.37° for 1/2.5" sensor cameras. Lens features include a fast f/1.6 maximum aperture and manual focus and zoom controls.