Optical Spherical Glass FiltersOuter diameter: φ 6.585- φ 6.595 mm Thickness: 1.35-1.41mm Core deflection:<90“Send InquiryLive chatProduct DetailOptical Spherical Glass FiltersShare:PREVIOUS:Optical Flat Glass FiltersNEXT:Optical Spherical Glass FiltersRelated ProductsEFL:2.05mm F#:2.4Plastic Optical BarrelsEFL:3.3mm F#:1.1 (GJ-1B)EFL:2.29mm F#:2.6Conacave-convex Aspheric LensesPlastic Optical Barrels