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Film Photography Forum Discuss film photography techniques, including darkroom, film types, film cameras, filters, etc. - forum moderator is Xia-Ke.
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  1. #1
    Junior Member
    Join Date
    Jan 2010

    Light for Darkroom?

    For developing paper, what kind of bulb would I use? I have a 25 watt red bulb but I dont know if that would be the right one to use. I need one that I can just get at a hardware store.

  2. #2
    Panarus biarmicus Moderator (Sports) SmartWombat's Avatar
    Join Date
    Mar 2004

    Re: Light for Darkroom?

    You need special darkroom bulbs.
    Or low wattage bulbs in darkroom lamp enclosures (which have dark filters).
    Which one depends on the kind of paper you're using.

    Scroll down to the Sports Forum and post your sports pictures !

  3. #3
    Film Forum Moderator Xia_Ke's Avatar
    Join Date
    Jan 2007

    Re: Light for Darkroom?

    Paul is right, you will need a low wattage bulb. My darkroom light uses a 15w bulb IIRC and the red glass for the light is pretty thick, so the light levels are really low. Only way to know is to do a fog test for your paper. Leave an unexposed sheet of paper out for a good 5 minutes under darkroom light conditions, then develop. If it is fogged, your light is too bright. I'm not sure hwat bulb exactly you are using but with some colored lights I have seen, the coloring doesn't go all the way to the screw mount, leaving some a little uncolored glass. Save yourself the headache and just order a Patterson safelight online. They are acheap and work great for a small darkroom.
    Aaron Lehoux * flickr
    Please do not edit my photos, thank you.

  4. #4
    Join Date
    May 2010

    Light for Darkroom

    That depends on how much power you are pulling from it, if you are using all 1500 watts 3- 500 watt lights it only lasts for 1 hour.

    and yes, i agree that this generator is the best deal, its pretty quiet too, especially when used in an open area.

  5. #5
    Analog Photographer, Digital World Axle's Avatar
    Join Date
    Dec 2004
    Milton, ON, Canada

    Re: Light for Darkroom?

    Quote Originally Posted by Xia_Ke
    Save yourself the headache and just order a Patterson safelight online. They are acheap and work great for a small darkroom.
    My friend with a darkroom did the exact same thing.

    Also: You cannot get a Darkroom light bulb from a hardware store. In fact if you ask, they may look at you funny. "Darkroom light? wouldn't that defeat the purpose?"
    Alex Luyckx | Photography
    Capturing Beauty in Everything

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