Item Type: CS Mount Lens Material: Aluminum Alloy Uses: surveillance cameras, DIY Focal Length: Approx. 6.0mm/0.24in Format: 1/2in D/f': 1.2 Mount: CS F.0.V (D/H/V): 63 Back Focal Length: Approx. 7.53mm/0.3in Iris: Manual, Lock Zoom: - MTF: 3 Mega Pixel M.0.D: Approx. 0.2m/7.9in Size: Approx. 30x34.00mm/1.2x1.3in Package List 1 x CS Mount Lens 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. 1Professional Lens: CS mount lens is designed for 6.0mm focal length, 1/2in image size, 63 field of view, professional design provides you with more professional shooting. 2Accurate 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. 3High Quality Material: The CCTV camera lens shell is made of high quality aluminum alloy materials with excellent resistance to high temperature, not easy to rust or deform, durable. 4Excellent Performance: The 6mm focal length lens is strictly engineered and produced after extensive test, no lens shading, no dark corners, decent image quality. 5CS Mount Lens: Adopts CS mount design, you can get a bit more clarity and focus, recommended to someone want to get better quality for both still and video for the home security system.