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  1. #1
    thefizz's Avatar
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    Making a UV light source - what bulbs?

    I plan to make a UV light source for Van Dyke and Kallitype printing and wish to know which type of bulbs or tubes are best as I understand there are different types available.
    www.thephotoshop.ie
    www.monochromemeath.com

    "you get your mouth off of my finger" Les McLean

  2. #2
    cliveh's Avatar
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    UV.

    “The contemplation of things as they are, without error or confusion, without substitution or imposture, is in itself a nobler thing than a whole harvest of invention”

    Francis Bacon

  3. #3
    donkee's Avatar
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  4. #4
    Rick A's Avatar
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    Rick A
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    BTW: the big kid in my avatar is my hero, my son, who proudly serves us in the Navy. "SALUTE"

  5. #5
    Herzeleid's Avatar
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    Have you read this article
    http://unblinkingeye.com/Articles/Light/light.html
    http://unblinkingeye.com/Articles/Light/L2/l2.html

    Apparently Kallitypes (and I presume other FO processes as well) benefit from 400nm bulbs, but the rest of the processes benefits from 365nm BL bulbs.

    Correction, it seems only kallitypes benefit from 400nm UV bulbs.
    Last edited by Herzeleid; 01-08-2014 at 03:47 PM. Click to view previous post history.

  6. #6
    Mainecoonmaniac's Avatar
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    I use these tubes for cyanotypes, salt printing and Ziatypes.

    http://m.petco.com/product/5709/Cora...nt-Bulbs.aspx#
    "Photography, like surfing, is an infinite process, a constantly evolving exploration of life."
    Aaron Chang

  7. #7

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    Nowadays you are better off building your own using multiples 1w 395nm leds from ebay.




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  8. #8
    thefizz's Avatar
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    Thanks for the information and links.
    www.thephotoshop.ie
    www.monochromemeath.com

    "you get your mouth off of my finger" Les McLean

  9. #9
    mjs
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    I bought blacklight bulbs from my local Lowe's home improvement store. I believe they are BLB bulbs. I make salt and cyanotype prints. Exposure times for salt prints range from 14 minutes to 28 minutes, depending of course on negative density (some of my early negatives made for alt printing are a little dense as I was experimenting with exposure times and development times to get the best result.) Cyanotypes (traditional process,) are about 10-12 minutes. Lowes had the bulbs for a very good price -- I only paid $5 or so each for them, a couple of years ago.

    Mike
    Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming– “Wow! What a Ride!”

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