Item Type: Camera Zoom Lens Material: Aluminum alloy Resolution: 5-50mm Image Format: 1/2.5in Focal Length: 5MP Aperture: F1.6 Interface (Mount): C Field Angle DXHXV(): 1/2.5in: Short Throw (Wide) Telephoto (Tele) D: 60.5 9.0 H: 51.4 7.6 V: 26.0 4.0 Minimum Shooting Distance (M.O.D.): 0.3m-infinite Flange Back Focal Length (Flange BFL): 17. 526mm Back Focal Length: 12-15.7 Dimension: 37xL62. 4mm Filter Size: UV M340.5P Rotation Angle: 90 ~120 Lens Construction: 12G Operation: Iris: Manual Focus: Manual Zoom: Manual Operating Temperature: -20C~+80C Package List 1 x Lens 1 x Adapter Ring 15MP Lens: Camera lens has a 5 MegaPixel, which provides high definition images, good color reproduction, observe objects more clearly. 2Manual Aperture Zoom: With adjustable aperture manual focus lenses, you get more clarity, focus and the ability to change lenses. 3Wide Application: With low distortion and high compatibility, this lens can be adapted to most security camera models. 4Tough Shell: The lens is protected by premium aluminum alloy shell, which can be used in extreme environments, and better protect the lens. 5Easy Install: The aperture can be fixed, easy to install and disassemble, save time and effort, and can bring you much convenience.