Item Type: CS Mount Lens Material: Aluminum Alloy Focal Length: 25.0mm Format: 1/2in Relative Aperture: 1.2D/F' Mount: CS Field of View (F.O.V) (D H V): 16.7 Back Focal Length: 8.03mm Iris: Manual or Lock Resolution (MTF): 3MegaPixel M.0.D: 0.2m Dimensions: 30x34.00mm/1.18x1.34in 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 1Characteristic: The camera lens uses CS mount, the focal length is 25mm, the image format is 1/2in, the field of view is 16.7, and it has manual focus and adjustable aperture. 2High Definition: Optical coating is very important for the imaging of the camera lens. The camera lens adopts high definition optical coating to restore the true color. 3Accurate Focus: The digital camera lens is designed with an easy to grip focus ring, which provides very accurate focus for highly accurate shots. 4Premium Material: The shell of the camera lens is made of high quality aluminum alloy material, which is resistant to high temperature, waterproof, will not rust, and has a long service life. 5Simple Operation: Manual iris lens is easy to install and disassemble without affecting the installation and use of other accessories, perfect replacement camera lens.