longpass filter professional technical precision test and higher effective fast delivery best service long pass filterMaterials: IAD Hard CoatingIncidence Angle: 0 degreeWork Wavelength Range: 200 ~1200nmT% avg in pass band: >95%Blocking: T<10-6Application: Optical system, Fluorescence Analyzer (LP320,420,435,455,475,495,515,530,550,570,590,610,665,695,800)