13MP high-definition lens, fast zoom speed, can observe objects more clearly. 2Can change the shooting range by changing the focal length, helps the picture composition. 3One zoom lens covers the focal range of a variety of prime lenses, saving time for changing lenses. 4Made of high-quality aluminum alloy material, strong and durable, the aperture can be fixed and locked, more convenient to use. 5With low distortion, high compatibility, can adapt to most security cameras. Item Type: Camera LensMaterial: Aluminium AlloyColor: BlackPixel: 3MPFL: 8-50mmRelative Aperture: 1:1.4Image Size: 1/2.3inMount: CS MountField of View (F.O.V) (H/V): W41.8x30.8/T6.42x4.80M.O.D: 0.2mFlange Back Focal Length(BFL): 17.53mmBack Focal Length: 8.03mmAperture: Automatic Aperture (AUTO)Zoom: Manual/Lock (W/Lock)Working Temperature: -20-60 1 x 3MP Zoom Lens1 x Manual