ModelNoSL08551AImageFormatCover1/3"1/2"FocalLength8.5-51.0mmMaximumApertureRatioF1.2-360IrisControlMethodVideoDriveFocusControlMethodMotorizedZoomControlMethodMotorizedAngleFieldofView(D×H×V)1/3inchWide31.3°×23.6°Tele5.5°×4.1°1/2inchWide41.2°×31.3°Tele7.2°×5.5°2/3inchWide***Tele***1inchWide***Tele***MinimumObjectDistance1.0mBackFocalLength12.55mmEffectiveDiameterFrontΦ44.0mmRearΦ11.7mmFilterScrewSizeM52.0P=0.75MountCMechanicalDimension(D×L)Φ66×82.5×93.4mmWeight610gComments)