The TRF49900 single band TIRF filter sets utilize the same laser clean-up filter and bandpass emission filter as the corresponding 49900 series filter set, but also contain an additional longpass emission filter for greatly increased blocking of the TIRF laser. Both emission filters are mounted in the filter cube to provide Ultra-High signal/noise ratios. The Ultra-Flat Dichroics in our TIRF sets are 2mm thick for distortion-free reflection of TIRF lasers with surface flatness =/> 0.5 waves/inch P-V, RWD. All catalog TIRF sets are mounted in Chroma’s metal TIRF cubes. For more information, please see the supporting materials on our TIRF filter set webpages.