Item Type: 25mm F1.4 CCTV Lens_x000D_ Material: Aluminum, Glass_x000D_ Original Focal Length = 25mm / 1in_x000D_ Mounting Type: C Mount_x000D_ Aperture: F 1.4_x000D_ Aperture Operation: Manual_x000D_ Focusing Operation: Manual_x000D_ Viewing Angle: 19.6_x000D_ Object Distance (OD): Approx. 30cm / 11.8in 1MANUAL ADJUSTMENT: C mount film lens is simple to use and the aperture can be manually adjusted according to the available light level. 2ADVANCED OPTICS: C mount camera lens uses advanced optics to ensure all around clarity and efficient light guidance. 3WIDEST FIELD OF VIEW IMAGE: C mount CCTV lens has low distortion and provides you with the widest field of view image that a C interface lens can offer. 4RUGGED AND DURABLE: F1.4 CCTV lens features an aluminum housing and glass lens. It is rugged and resistant to damage and has a long service life. 5RANGE OF APPLICATIONS: 25mm F1.4 CCTV lens is perfect for bars, stores, parking lots, houses and warehouses, etc.1 x_x000D_ _x000D_ 25mmF1.4CCTVLens