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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. Revisiting the 340BP15 on a GH-1.

    By Andrea B.,   
    • 5 replies
    • 375 views

  2. New Tangsinuo filters - which to get? 1 2

    By Fandyus,   
    • 41 replies
    • 2.3k views

  3. Adjustable IR filter? How does this work?

    By Andrea B.,   
    • 7 replies
    • 437 views

  4. Variable ND filter for Vis/IR

    By Nate,   
    • 4 replies
    • 203 views

  5. Hunt for the Blue Tree (an impossible false-color look?) 1 2

    By Christoph,   
    • 28 replies
    • 1.6k views

  6. Custom variable NIR-pass filter with Hoya 80B

    By enricosavazzi,   
    • 6 replies
    • 382 views

  7. A few NIR low-pass filters (and others) tested

    By enricosavazzi,   
    • 6 replies
    • 338 views

  8. Very quick question - IR 1um+ filter recommendation 1 2

    By lukaszgryglicki,   
    • 37 replies
    • 968 views

  9. Experiment with WB for B+W 092 IR-Pass

    By Andrea B.,   
    • 11 replies
    • 359 views

  10. Filter simulator using real world data in software

    By Daniel Gawędzki,   
    • 3 replies
    • 281 views

  11. Adapters to put the UV filter behind the lens

    By rfcurry,   
    • 11 replies
    • 441 views

  12. Hoya U-340 Filter on eBay - Does This Look Right?

    By Andrew Dayer,   
    • 3 replies
    • 448 views

  13. Bokeh striations in ZWB2

    By Ming,   
    • 10 replies
    • 567 views

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

    By JMC,   
    • 35 replies
    • 4.7k views

  15. New CuRB chart on UVR Optics

    By lukaszgryglicki,   
    • 5 replies
    • 263 views

  16. "Shadowgraphy" with UV light - an experiment to detect fluctuations in the optical density of otherwise homogeneous, transparent panes of glass

    By Kai,   
    • 9 replies
    • 516 views

  17. AR coated QB21

    By aphalo,   
    • 7 replies
    • 601 views

  18. EOS 5DS R - sensor filter transmission measurement

    By JMC,   
    • 13 replies
    • 2.5k views

  19. Wratten 2A vs 2E for UVIVF?

    By Doug A,   
    • 2 replies
    • 321 views

  20. Cerium oxide 1 2

    By Fandyus,   
    • 40 replies
    • 1.2k views

  21. good deal for a 340nm bandpass filter on eBay

    By Fandyus,   
    • 5 replies
    • 229 views

  22. Is this oxidization or something else?

    By LookCloser,   
    • 17 replies
    • 604 views

  23. Seeing through the Fog

    By Andrea B.,   
    • 4 replies
    • 1.1k views

  24. New TSN575 Tangsinuo (an alternative to BG39 / S8612 ?)

    By photoni,   
    • 24 replies
    • 1.5k views

  25. theory and practice of basic UV lenses

    By photoni,   
    • 5 replies
    • 439 views
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