mega pixel fisheye lens 1.High quality,clear image 2.Focal length 4.0mm,1/2 inch,M12*0.5 mount,F1.8 aperture ... 3.5mega IR lens Hot selling 4.0mm 5 megapixel M12*0.5 mega pixel ... .8 Format(inch) 1/2 Mount M12*0.5 Angle of View 114.3° MOD(m) 0.2 Dimension(mm) Φ14×16 ... :(2.1mm,2.5mm,2.8mm,3.6mm,6mm,8mm,12mm,16mm) Certificate: Hot selling 4.0mm 5 megapixel M12*0.5 mega pixel ...