Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 75,148   Posts: 1,658,147   Online: 730
      
Results 1 to 5 of 5
  1. #1
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    3,452
    Images
    6

    My home made light box

    I took a couple of weekends building it and the black light tubes it came with didn't work well but I got it working. It takes about 40 minutes for a cyanotype while the sun only takes 10 minutes. But here it is.
    Attached Thumbnails Attached Thumbnails IMG_1308.jpg  
    “We are buried beneath the weight of information, which is being confused with knowledge; quantity is being confused with abundance and wealth with happiness.
    We are monkeys with money and guns.”

    ― Tom Waits

  2. #2
    bsdunek's Avatar
    Join Date
    Jul 2006
    Location
    Michigan
    Shooter
    Multi Format
    Posts
    1,242
    Images
    215
    Nice. So, what kind of lamps did you find that work? I wouldn't mind longer exposures if the end result is good - Winter is so cloudy here one can't depend on anything outside.
    Bruce

    Moma don't take my Kodachrome away!
    Oops, Kodak, of all people, did!
    .


    BruceCSdunekPhotography.zenfolio.com

  3. #3
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    3,452
    Images
    6
    The tubes I replaced them with are these actinic tubes.

    http://www.petmountain.com/show_product/11442-505559

    The results are pretty good. With my other black light tubes, the cyanotype emulsion washed off whenI was clearing it in water.
    “We are buried beneath the weight of information, which is being confused with knowledge; quantity is being confused with abundance and wealth with happiness.
    We are monkeys with money and guns.”

    ― Tom Waits

  4. #4
    Herzeleid's Avatar
    Join Date
    Oct 2008
    Location
    Ankara/Turkey
    Shooter
    Multi Format
    Posts
    194
    FYI, BL350 or BL368 bulbs would significantly reduce the required exposure times. I used these bulbs to build my exposure unit, their output peaks around 365nm.
    http://www.lamps2udirect.com/pages/f...scent_Tube/550

    The ones used for aquariums apparently provide peak output around 420nm. Check this thread http://www.apug.org/forums/forum42/9...rinting-2.html

    My exposures are around 7 to 9 minutes with cyanotypes, both traditional and the new formula.

  5. #5
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    3,452
    Images
    6
    Dang. Should have checked the link first. I blew $100 on the tubes and I'll live with them for a while. But for the next round, I'll get the 365 mn tubes.
    “We are buried beneath the weight of information, which is being confused with knowledge; quantity is being confused with abundance and wealth with happiness.
    We are monkeys with money and guns.”

    ― Tom Waits



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin