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  1. #1
    Gustavo_Castilla's Avatar
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    Heat lamp as a UV source

    Hi I am wondering if anyone out there has used a heat lamp as a UV light source
    Thanks
    Gustavo Castilla
    We are not moved by things ,
    but by the views we take of them.
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  2. #2
    Loose Gravel's Avatar
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    Wrong end of the spectrum. You want the blue end and beyond, not the red and the infrared (heat).
    Watch for Loose Gravel

  3. #3
    Gustavo_Castilla's Avatar
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    red

    Hi Thanks for the comment the light I was refering to is a GE Heat lamp 250,
    Do you think maybe a mercury vapor light may work
    Gustavo Castilla
    We are not moved by things ,
    but by the views we take of them.
    Epictitus.
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  4. #4
    Loose Gravel's Avatar
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    There are so many different kinds of mercury vapor to get into it. No reason to plow new ground here. If you are looking for a cheap source for alt process, use the sun. If you want to build a source, read the article at unblinkingeye.
    Watch for Loose Gravel

  5. #5
    rogueish's Avatar
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    Heat lamps are indeed the wrong end of the spectrum and for most Alt processes, you want to avoid excessive heat as it can cause fogging on the print.
    If you do use bulbs, 24" 20 watt fluorescent with the designation of
    F20T12/350BL. Make sure it is labeled BL and not BLB BLB tend to be more expensive and put out less UV.
    This is from a book called Coming into Focus:step by step guide to alt photo printing processes.
    Check out
    Palladio Company. 800-628-9618. Palladium paper, light iunits and vacuum frames. Primarily phone and catalog orders.
    www.bostick-sullivan.com

  6. #6
    John_Brewer's Avatar
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    I use a UV face tanning unit for which I paid the princely sum of £5 for at a car boot sale. Will cover 8x10.
    Attached Thumbnails Attached Thumbnails uv.jpg  
    ~John~
    --------------------------
    www.johnbrewerphotography.com
    There are 10 types of people in this world - those who understand binary and those who don't.



 

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