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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. Thinking about Andrea U mkII filter

    By Doug A,   
    • 16 replies
    • 654 views

  2. uv/ir cut filter for rookie

    By dancingcat,   
    • 15 replies
    • 503 views

  3. AR coated QB21

    By aphalo,   
    • 7 replies
    • 614 views

  4. in need of some quick advice on an oxidized ZWB3

    By Fandyus,   
    • 10 replies
    • 524 views

  5. "Still Life" dehydrated sunflower with various filters

    By photoni,   
    • 3 replies
    • 299 views

  6. 3 filter stacked

    By Picareto,   
    • 12 replies
    • 281 views

  7. pinhole against Nikkor 50mm f: 2 - 1964

    By photoni,   
    • 14 replies
    • 931 views

  8. Pinhole sunset

    By photoni,   
    • 18 replies
    • 395 views

  9. testing many of my filters + + 365nm led light torch

    By photoni,   
    • 20 replies
    • 440 views

  10. What ionic filter stack is closest to Baader U performance?

    By Doug A,   
    • 9 replies
    • 2k views

  11. I'm looking for a translation 1 2

    By photoni,   
    • 28 replies
    • 1.5k views

  12. Thickness test series with ZWB1 filters

    By dabateman,   
    • 11 replies
    • 601 views

  13. Kolari UV-pass - handheld test

    By lukaszgryglicki,   
    • 18 replies
    • 595 views

  14. Koloari UV-pass - handheld test

    By lukaszgryglicki,   
    • 3 replies
    • 247 views

  15. New IR Chrome version and how to DIY

    By Christoph,   
    • 13 replies
    • 2.9k views

  16. An old Kodak Wratten 18a filter

    By JMC,   
    • 16 replies
    • 777 views

  17. [Filter Test] U-340 x 1.0 mm and ZWB1 x 1.5 mm: Visible Light Leaks

    By Andrea B.,   
    • 9 replies
    • 407 views

  18. What is everyone doing with their 8mm ZWB1 1 2 3

    By colinbm,   
    • 72 replies
    • 2.6k views

  19. Revisited an Old Topic and Now I Have a Question about IR-Leak

    By Andrea B.,   
    • 14 replies
    • 769 views

  20. [Filter Test] AndreaU-MkII, BaaderU, Hoya U340 x 4.00 mm: Raw Colors

    By Andrea B.,   
    • 15 replies
    • 401 views

  21. Holmium oxide glass? 1 2

    By Fandyus,   
    • 29 replies
    • 1.4k views

  22. Chinese filters - a positive experience 1 2 3 4

    By JMC,   
    • 93 replies
    • 3.2k views

  23. Got a new Nikkor EL 105mm - Need UV Filter Advice

    By Doppler9000,   
    • 24 replies
    • 1.2k views

  24. good new deal on dichroic color filters from Tangsinuo

    By Fandyus,   
    • 12 replies
    • 461 views

  25. Comparison between BG3-stacks and BG25 stacks

    By ulf,   
    • 19 replies
    • 741 views
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