Broad Band AR (BBAR) CoatingOuter diameter: φ 16.988- φ 16.998 Thickness: 3.61-3.65mm Core deflection:<90“ Send InquiryLive chatProduct DetailBroad Band AR (BBAR) CoatingShare:PREVIOUS:Single Layer AR CoatingNEXT:Ultra-hard Water-proof BBAR CoatingRelated ProductsLacquering LensesPlastic Optical BarrelsUltra-hard Water-proof BBAR CoatingLacquering LensesConacave-convex Aspheric LensesFixed Focal Length Lenses-f 3.1mm