ViewZ 6.5-39mm F1.4 Vari-Zoom Lens with CS-Mount, DC Auto-Iris

ViewZ Vari-zooms lens combines the efficiency and performance of a zoom lens at the cost of a vari-focal.• Focal Length - 6.5-39mm• DC-Auto Iris• Manual Zoom / Focus Vari-Focal Lens ViewZ's varifocal lenses offer the maximum flexibility when the installation setting requires a wide range of focal lengths. The focal length can be adjusted easily on all lenses and comes with auto-iris for settings with changing light conditions. We offer a wide range of varifocal lenses, including megapixel and IR-lenses. Made In Japan All ViewZ lenses are all made in Japan and we produce superior quality products in a small-sized manufacturing environment, where we respect craftsmanship. ViewZ offers over 180 advanced lens solutions such as Fixed, Vari-Focal and Zoom in both standard and megapixel resolutions for a variety of applications. Each ViewZ lens is backed by our 4-year warranty. DC-Type Auto-Iris An auto-iris lens without an internal circuit to control the iris. All iris control voltages come from a circuit located within the camera to adjust the iris for changing light levels. DC-type lenses are recommended for use in inconsistent lighting conditions (e.g. outdoors). These are sometimes referred to as DD (Direct Drive) lenses. Various Focal Length Focal length is the basic characteristic of a lens and determines how much magnification it provides. The focal length defines the area of the scene that can be viewed with a given sensor size and is expressed in millimeters (mm). ViewZ lenses have many options when it comes to focal length selection to fit your application. CS Mount CCTV lenses are available in two different lens mounts. Many of today's cameras can accept either type of lens, but it is important to make sure that camera and lens are compatible and set up properly. CS-mount lenses have a flange back distance of 12.5mm vs. 17.526mm for C-mount lenses. Because of the shorter back focal distance, CS-mount lenses can only be used on CS-mount cameras. Your picture will be out of focus if you use a CS-mount lens on a C-mount camera.