... 0 aperture board lens3.Popular focal length 2.8mm cctv lens4.CCTV lens/CCTV camera lens/Security cctv lens/Monitoring lens/ megapixel cctv lens/ surveillance lens/optical lens/mini lens ... 0.2 Dimension(mm) Φ17.7*14 Net Weight(g) 4.6 Character Fixed ABF MTV lens/fisheye lens/mini lens ... serie:(2.1mm,2.5mm,2.8mm,3.6mm,6mm,8mm,12mm,16mm) Certificate: Board lens 2.8mm M12*0 ...