1.Image Format,1/3" 2.Lens mount,CS 3.Focal Length,5-100mm 4.Aperture ,1.4 SSV05100GNB(5-100mmVari-focal Auto-Iris CCTV Camera Lens )Image Format 1/3"Lens mount CSFocal Length 5-100mmAperture 1.4View Angle 50.1-2.8OperationZoomManual Focus Manual IrisDCDimensionsΦ50×92 5-100mm Vari-focal Auto-Iris CCTV Camera Lens