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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. Trying to Prevent Filter Glass Oxidation #1 1 2 3 4 5

    By Andrea B.,   
    • 108 replies
    • 4.6k views

  2. coating ionic filters at home

    By rfcurry,   
    • 6 replies
    • 385 views

  3. Question about Putty-Mounted Back Filters

    By Andrea B.,   
    • 3 replies
    • 320 views

  4. Mounting Filters Behind M42 Lens

    By colinbm,   
    • 7 replies
    • 737 views

  5. QB39+ZWB1: Possibly the cheapest way to get true UV? (~26€)

    By Fandyus,   
    • 20 replies
    • 842 views

  6. Omega 360DF40 on eBay

    By Andy Perrin,   
    • 7 replies
    • 396 views

  7. Anyone own this filter? 1 2

    By Fandyus,   
    • 29 replies
    • 877 views

  8. New Chinese U-venus filters.

    By dabateman,   
    • 4 replies
    • 861 views

  9. Fixing a filter to the lens

    By nurWolfgang,   
    • 8 replies
    • 358 views

  10. Another way to rear-mount filters

    By bvf,   
    • 13 replies
    • 605 views

  11. Neutral Density Filters for Infrared photography

    By mathieucarbou,   
    • 0 replies
    • 427 views

  12. [Filter Test SEU Gen2 #4] Dealing with the Usual Dichroic Effects

    By Andrea B.,   
    • 9 replies
    • 2.8k views

  13. Schott S8612 coated vs uncoated test

    By Cadmium,   
    • 15 replies
    • 1.1k views

  14. What would you suggest as a beginner affordable UV pass filtering solution 1 2

    By microbat52,   
    • 37 replies
    • 1.7k views

  15. Historical 365nm bandpass filter

    By JMC,   
    • 9 replies
    • 622 views

  16. Suspicious filters on eBay

    By Andy Perrin,   
    • 8 replies
    • 502 views

  17. I found something to possibly help with oxidation when storing filters 1 2

    By ultrainfra,   
    • 29 replies
    • 1.6k views

  18. Why are FL-D and FL-W filters not labeled consistently across manufacturers?

    By ultrainfra,   
    • 17 replies
    • 966 views

  19. Are UV filters useless at blocking UV? Tune in to find out! 1 2

    By ultrainfra,   
    • 26 replies
    • 2k views

  20. Variable IR filter

    By Nisei,   
    • 7 replies
    • 951 views

  21. Sigma Aerochrome via Red & Green filters 1 2

    By Christoph,   
    • 32 replies
    • 2.2k views

  22. Ulf Said

    By Cadmium,   
    • 7 replies
    • 567 views

  23. Large diameter IR filter for a car headlight......

    By JMC,   
    • 6 replies
    • 797 views

  24. Mystery UV narrow band dichroic filter

    By colinbm,   
    • 4 replies
    • 338 views

  25. Need help with filter problem UV/IR 1 2 3

    By StephanN,   
    • 53 replies
    • 2.8k views
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