ModelNoSE1212-2ImageFormatCover1/3"1/2"FocalLength12.0mmMaximumApertureRatioF1.2-CIrisOperationManualIrisRangeF1.2-CloseFocusOperationFocusManualScale***AngleFieldofView(D×H×V)1/3inch27.4°×22.1°×16.7°1/2inch37.1°×29.7°×22.3°2/3inch***1inch***MinimumObjectDistance0.3mBackFocalLengthEffectiveDiameterFrontRearFilterScrewSizeMountC)