RANGE OF APPLICATIONS: 25mm F1.4 CCTV lens is perfect for bars, stores, parking lots, houses and warehouses, etc. RUGGED 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. MANUAL ADJUSTMENT: C mount film lens is simple to use and the aperture can be manually adjusted according to the available light level. WIDEST 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. ADVANCED OPTICS: C mount camera lens uses advanced optics to ensure all around clarity and efficient light guidance.