Feature:1. 8mm Focal Length Lens: CS mount lens is designed for 8.0mm focal length, 1/2in image size, 48 field of view, professional design offers more professional shooting to you.2. High Accuracy Focus: The CS mount lens with manual focus and adjustable aperture, and the easy to grip focus ring provides very accurate focus for highly accurate shots.3. Reliable Materials: The camera lens is made of premium aluminum alloy shell structure with excellent resistance to high temperature, not easy to rust or deform, durable.4. Excellent Performance: The 8.0mm focal length lens is strictly engineered and manufactured after extensive test, no lens shading, no dark corners, decent image quality.5. Wide Usage: High quality CCTV camera lens adopts CS mount design, you can get a bit more clarity and focus, recommended for home security system or DIY camera.Specification:Item Type: CS Mount LensMaterial: Aluminum AlloyFocal Length: Approx. 8.0mm/0.31inFormat: 1/2inD/f': 1.2Mount: CSF.0.V (D/H/V): 48Back Focal Length: Approx. 7.53mm/0.3inIris: Manual, LockMTF: 3 Mega PixelM.0.D: Approx. 0.2m/7.9inSize: Approx. 30x34.00mm/1.2x1.3in.Package List:1 xCS Mount LensNote:The optical coating is very important for the imaging of the lens, and it needs to be handled with care to avoid scratching the coating.