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UltravioletPhotography

Filter Discussions & Tests

Discuss any filter: UV, IR, BG, UVIR-Cut, Dual Bandpass or whatever. Show us your tests of a filter.

370 topics in this forum

  1. Suggestions for narrow-pass filter

    By Bill De Jager,   
    • 16 replies
    • 2.2k views

  2. Need help fitting a filter on a lens

    By Andy Perrin,   
    • 9 replies
    • 1.3k views

  3. Investigating IR-Leak from the Baader U-Filter

    By kogakunippon,   
    • 20 replies
    • 7.3k views

  4. Getting a filter on a fisheye

    By ehunt123,   
    • 22 replies
    • 5.1k views

  5. Oxidation of ionic glass

    By rfcurry,   
    • 8 replies
    • 3.2k views

  6. [Filter Test] Hoya U340 x 4.00 mm [Added: Good Test Flower, Also]

    By Andrea B.,   
    • 3 replies
    • 1.5k views

  7. [Filter Test] Raw Colour Differences in 6 UV-Pass Filters

    By Andrea B.,   
    • 2 replies
    • 1.6k views

  8. [Filter Test] 340/10 #3 Trying again with the 340/10

    By Andrea B.,   
    • 14 replies
    • 4.2k views

  9. La La :-)

    By Cadmium,   
    • 5 replies
    • 2.5k views

  10. [Filter Test] AndreaU MK-II, BaaderU, Hoya U360 Stack, StaightEdgeU (v2016): Standards & CC Passport

    By Andrea B.,   
    • 6 replies
    • 1.9k views

  11. [Filter Test] AndreaU MK-II, BaaderU, Hoya U360 Stack, StraightEdgeU (v2016) :: Bouquet in Raw False Colours and in WB

    By Andrea B.,   
    • 2 replies
    • 2k views

  12. [Filter Test] Baader UV/IR-Cut, B+W 38/39/470, Schott BG40/S8612: IR-Blockers

    By Andrea B.,   
    • 7 replies
    • 3.6k views

  13. Lamination? Stack? Two Filter Makers Discuss Terminology

    By rfcurry,   
    • 5 replies
    • 1.4k views

  14. Visual Bandpass Filters

    By Cadmium,   
    • 0 replies
    • 1.5k views

  15. [Filter Test] StraightEdgeU (v2016) Summary of Recent Tests

    By Andrea B.,   
    • 0 replies
    • 951 views

  16. [Filter Test] StraightEdgeU (v2016) OD5-OD6 Wins IR Forcing Shootout!

    By Andrea B.,   
    • 3 replies
    • 3.5k views

  17. [Filter Test] (Teaser) Sunflower in UV with New Filter (NOW REVEALED!)

    By Andrea B.,   
    • 10 replies
    • 3.5k views

  18. [Filter Test] StraightEdgeU (v2016) vs. BaaderU: The Evil Clown of Middletown

    By Andrea B.,   
    • 0 replies
    • 1.6k views

  19. [Filter Test] BaaderU, Hoya U360 Stack, StraightEdgeU (v2016): Two Different Conversions per Filter

    By Andrea B.,   
    • 3 replies
    • 1.8k views

  20. [Filter Test] AndreaU MK-I, BaaderU, Hoya U360 Stack, StraightEdgeU (v2016) and The Standards

    By Andrea B.,   
    • 1 reply
    • 1.5k views

  21. [Filter Test] StraightEdgeU (v2016) vs. the Others: Scarecrow Garden Scene

    By Andrea B.,   
    • 2 replies
    • 2k views

  22. OG570 vs UV

    By Cadmium,   
    • 6 replies
    • 1.7k views

  23. [Filter Test] 340/10 #2 Cured the flare but it's ring around the posy here

    By Andrea B.,   
    • 6 replies
    • 2.9k views

  24. [Filter Test] 340/10 #1 Gotta work out a problem or two, but here is a 340/10 result anyway

    By Andrea B.,   
    • 15 replies
    • 5.1k views

  25. How good is the Baader U at suppressing IR? 1 2

    By nfoto,   
    • 37 replies
    • 10.2k views
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