For Long range distance use c-mount or cs-mount camera with fixed, manual or auto iris lens with varifocal length e.g. : 3.5-8mm or 2.8-10 mm, It is useful for Industries, Big shopping stores, big size hall or departmental stores. With the help of autoiris lens & flickerless chip can control flickering due to heavy lighting or light difference due to surrounding area. Cs-mount also provide the Pan/Tilt/Zoom feature manually in  Zoom camera with the help of Pan/Tilt  scanners. Also available in weatherproof design & with low light or day-night feature.