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Fluorescent organisms underwater videography

Discussion in 'U/W Videos' started by Sbiriguda, Nov 16, 2020.

  1. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    1,154
    247
    63
  2. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    1,154
    247
    63
    Otherwise like you said there are alredy diving lights with UV or blue light features, including some cheap clones on Wish or Aliexpress. I will try to list the options here

    Light and Motion
    TovaTec
    UWK - Underwater Kinetics
     
  3. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    1,154
    247
    63
    Will go on listing the lights later
    If I understand well, there is a third and last option theoretically, that is using an exciting filter directly on a "normal" dive light. Am I correct?
     
  4. АлександрД

    АлександрД Manta Ray

    # of Dives: 100 - 199
    Location: Moscow, Russia
    985
    1,773
    93
  5. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
    10,763
    8,534
    113
    Not really relevant. The point underwater is NOT to have a UV light, but to excite the fluorescence ....which works better in the violet, which is why the yellow filter is needed on the receiving end to block the blue so all you see is the fluorescence.
    NIGHTSEA - Practical Solutions for Fluorescence is the premier website, and Fluorescence Appearance can Depend on Excitation Wavelength - NIGHTSEA has the information you need.
     
  6. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    1,154
    247
    63
    This is actually off topic but searching about the fluorescent species of the mediterranean I found out that there is a bioluminescent one which is very common the jellyfish Pelagia Noctiluca
    Saw it many times in the daylight, I didn't know it's bioluminescent. Indeed "noctiluca" in Latin means "that emits light in the night"
     
  7. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    1,154
    247
    63
    I believe I found on Aliexpress a light with blue color that might be used for this purpose together with a yellow filter let's say the Backscater for example
    https://m.it.aliexpress.com/item/4001306409336.html

    The price is good around 30 USD per light and blue is just one of the possible color options so the lights can be used "normally" and then switch to blue when necessary. I don't expect them to be as good as the best products quoted in the discussion above, but if they are just good enough they might be worth a try
     

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