1、Motorized Lens: The lens is motorized (there are two high precision motors for motorized zoom and autofocus) and should be used with the driver PCB (not included). 2、Lens Design: Adopts 5MegaPixel high resolution lens, with focal length of 6~22mm, 1/2.5 inch image format, optical glass and metal workmanship. 3、IR Correction: The lens has an IR CUT function, which corrects the problem of color deviation during the day and improves the brightness at night. 4、Important Parameter: 6‑22mm focal length, D14 mount interface, low distortion, 0.3m minimum object dimension, 13.5mm Flange BFL, fixed aperture iris. 5、Tough Shell: The lens is protected by premium aluminum alloy shell, which can be used in extreme environments, and better protect the lens. Item Type: Motorized Zoom Lens Material: Aluminium alloy Resolution: 5 MegaPixel Image Format: 1/2.5in Focal Length: 6~22mm Aperture: F2.2 Mount Interface: D14 Field Angle (DxHxV) 1/2.5° Short Focus: D 58, H 46.4, V 34.8 Telephoto: D 20.4, H 16.3, V 12.21/3° Short Focus: D 46.5, H 37.2, V 27.9 Telephoto: D 18, H 14.4, V 11.4 1/4° Short Focus: D 34.5, H 27.6, V 22.5 Telephoto: D 12.6, H 10.1, V 7.6 Optical Distortion: -0.61~-15.6%(1/2.5in) CRA: ≤11.94° (short focus), ≤11.38° (telephoto) M.O.D.: Approx. 0.3m/11.81in Dimension: 28x45.3mm/1.10x1.78in Flange BFL: Approx. 13.5mm/0.53in BFL: Approx. 6.4mm/0.25in MBF: Approx. 6.2mm/0.24in IR Correction: Yes Operation:Iris: Fixed Aperture Focus: Autofocus (DC) Zoom: Auto Zoom (DC) Operating Temperature -20°C~+60°C 1 x Lens