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 ProductsDouble Convex Aspheric LensesConacave-convex LensesConacave-convex Aspheric LensesD-cut Shape LensesFixed Focal Length Lenses-f 3.1mmFixed Focal Length Lenses-f 4.0mm