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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. First use of Kolari UV filter in portrait

    By DonPilou,   
    • 21 replies
    • 7.1k views

  2. [Filter Test SEU Gen2 #6] Monochrome Museum Comparison 1 2 3

    By JMC,   
    • 57 replies
    • 7.1k views

  3. Example pictures taken with PrimaLuceLab UV filter

    By Alex H,   
    • 24 replies
    • 6.7k views

  4. UV Sparticle BandPass Filter Array

    By colinbm,   
    • 22 replies
    • 6.2k views

  5. [Filter Test] Hoya U330/U340/U360 and Schott UG1/UG5/UG1 Used as Unstacked Dual Band-Pass Filters

    By Andrea B.,   
    • 19 replies
    • 6.2k views

  6. How do I fit the filter to the lens? 1 2

    By jknights,   
    • 26 replies
    • 5.9k views

  7. Schott DUG11X and Baader-U comparison 1 2

    By JMC,   
    • 36 replies
    • 5.9k views

  8. Transmission of ZWB1 (2mm), ZWB3 (1.5mm) and BG39 (2.5mm)

    By JMC,   
    • 10 replies
    • 5.8k views

  9. Optical density has its limits

    By rfcurry,   
    • 23 replies
    • 5.8k views

  10. Red foliage with UV-IR cut filter + BG-3 filter 1 2

    By Hornblende,   
    • 34 replies
    • 5.6k views

  11. What is the deal with Optima & ZBW glass? 1 2

    By Andrea B.,   
    • 27 replies
    • 5.5k views

  12. [Filter Test SEU Gen2 #9A] Longpass Stack Wandering Discussion. See #9B for results. 1 2

    By Andrea B.,   
    • 43 replies
    • 5.5k views

  13. Blocking Infrared Light with Copper Sulphate Solution.

    By colinbm,   
    • 8 replies
    • 5.5k views

  14. Discussion: UG5/U-330 + S8612 Filter Stacks, Part 2

    By Andrea B.,   
    • 12 replies
    • 5.5k views

  15. Another Allamanda flower with a Violet Blue Cyan Green filter about 380nm to 530nm. 1 2

    By colinbm,   
    • 26 replies
    • 5.3k views

  16. Getting a filter on a fisheye

    By ehunt123,   
    • 22 replies
    • 5.1k views

  17. Help Needed: Filter Mounting on Steinheil Lens

    By OlDoinyo,   
    • 21 replies
    • 5.1k views

  18. [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

  19. Kolarivision IR Chrome DIY Chinese version. 1 2

    By Marc del Piro,   
    • 37 replies
    • 5k views

  20. Are longpass filters useful for transmission testing? 1 2

    By rfcurry,   
    • 48 replies
    • 5k views

  21. Using Hoya U340 for landscape photography

    By DonPilou,   
    • 11 replies
    • 4.9k views

  22. A new UV Bandpass filter

    By rfcurry,   
    • 19 replies
    • 4.8k views

  23. Baader U and Invisible Vision 308nm filter comparison for skin imaging 1 2

    By JMC,   
    • 35 replies
    • 4.8k views

  24. [Filter Test] 293BP10 UV-Pass: Still No Luck

    By Andrea B.,   
    • 23 replies
    • 4.7k views

  25. Best (affordable) alternative for B+W 099 filter? 1 2

    By Nisei,   
    • 38 replies
    • 4.7k views
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