Andrea B. Posted June 4, 2017 Share Posted June 4, 2017 Gathering data for commercially manufactured UV-pass filters.Going to eventually put this into the sticky also.Missing filters?? Please suggest. Should I list filters here like the B+W 403 which is really dual-bandpass? No. No longer manufacturedAndreaU Mk-1CopperUPrecisionUAndreaU Mk-II359FWHM37? [346-383nm]75% trans rate at peakUVR Opticssubstrate = ? ionic with ionic IR-blockerboth sides quartz-claddedod4 - od6 for 400-1100nm[*]BaaderU350FWHM60 [320-380nm]85% trans rate at peakBaader Planetariumsubstrate = Schott UG11 with dichroic IR-blocking layerOD[*]KolariU365FWHM40 [340-380 on website, but 345-85?]50% trans rate at peakKolari Visionsubstrate = ? with ? IR-blockingOD 4.3, range not given[*]LuvU359FWHM53 [327-382nm]65% trans rate at peakUviropticssubstrate = ? with ? IR-blockingOD[*]PrimaLuceU340FWHM85 ? [290-375nm ?]85% trans rate at peakPrima Luce Labsubstrate = ? [if it isn't U-340 or UG11, then I'll eat my hat.]OD[*]StraightEdgeU 379FWHM43? [342-385nm, peak shifted right within that range]85% trans rate at peakUVR Opticssubstrate = ?? Dichroic coating over ionic NIR-blocker.quartz clad on non-dichroic sideODoptimized for UV-A[*]U-360 (2mm) + S8612 (2mm) Stack365FWHM60 [325-385nm estimated from charts]60% trans rate at peak(You could use a 1.5mm thick S8612 and raise that trans rate. I'm in the land of overkill using a 2mm thick S8612.)Uviropticssubstrate = Hoya U-360 with Schott S8612 IR-blockingOD Link to comment
Andy Perrin Posted June 4, 2017 Share Posted June 4, 2017 Wasn't there a CopperU also? Link to comment
Alex H Posted June 4, 2017 Share Posted June 4, 2017 https://www.primalucelab.com/astronomy/filters/filtro-ultravioletto-uv-filter-50-8mm.html Link to comment
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