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UltravioletPhotography

Filter Designations


Andrea B.

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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 manufactured

AndreaU Mk-1

CopperU

PrecisionU

  • AndreaU Mk-II
    • 359FWHM37? [346-383nm]
    • 75% trans rate at peak
    • UVR Optics
    • substrate = ? ionic with ionic IR-blocker
    • both sides quartz-cladded
    • od4 - od6 for 400-1100nm

    [*]BaaderU

    • 350FWHM60 [320-380nm]
    • 85% trans rate at peak
    • Baader Planetarium
    • substrate = Schott UG11 with dichroic IR-blocking layer
    • OD

    [*]KolariU

    • 365FWHM40 [340-380 on website, but 345-85?]
    • 50% trans rate at peak
    • Kolari Vision
    • substrate = ? with ? IR-blocking
    • OD 4.3, range not given

    [*]LuvU

    • 359FWHM53 [327-382nm]
    • 65% trans rate at peak
    • Uviroptics
    • substrate = ? with ? IR-blocking
    • OD

    [*]PrimaLuceU

    • 340FWHM85 ? [290-375nm ?]
    • 85% trans rate at peak
    • Prima Luce Lab
    • substrate = ? [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 peak
    • UVR Optics
    • substrate = ?? Dichroic coating over ionic NIR-blocker.
    • quartz clad on non-dichroic side
    • OD
    • optimized for UV-A

    [*]U-360 (2mm) + S8612 (2mm) Stack

    • 365FWHM60 [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.)
    • Uviroptics
    • substrate = Hoya U-360 with Schott S8612 IR-blocking
    • OD

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