CWG-ZG25095/3 Specifications: Focal Length: 25.0mm F. No.: 0.95 F.A. Dianonal: 13.2 M.O.D.: 0.4m Format: 1/3" Mount: CS Dimension: φ52*3*4mm Weight: 176.5g DC Drive Motors Imported from Japan. More effective for motor drive. Good Materials: made of all metal or glass. With photosensitive Agglutinant between two glasses to inform the better images. High Resolution and Contrast: for detail surveillance. Exact Optical System made the infrared light form the same image as the visible light, leading to the better quality image in the low illumination. Special treatment in the inner wall of the lens to avoid the repetitious reflection of the light., in order to form clearer image. All of them are under Total Quality Control. Some of the inspectation Instruments are imported from Germany. Certification: ISO9001:2000 & RoHS