mega pixel fisheye lens 1.High quality,clear image 2.Focal length 4.0mm,1/2 inch,M12*0.5 mount,F1.8 ... 5mega IR lens Hot selling 4.0mm 5 megapixel M12*0.5 mega pixel fisheye lens 1.Our products have passed OHSAS18001:1999 ... metal lens2.Focal length 4.0mm,1/2 inch,M12*0.5 mount,F1.8 aperture 5 megapixel board lens3. ... 12mm,16mm) Certificate: Hot selling 4.0mm 5 megapixel M12*0.5 mega pixel fisheye lens