Ilford 500H head bulb replacement

Discussion in 'Darkroom Equipment' started by echard, Mar 2, 2013.

  1. echard

    echard Subscriber

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    Hi All, one of the bulbs is out on my 500H. Of course, right after I mixed chemicals to print:sad: I pulled the bulb and it's a 300watt. Anyone know of where I can get one and what to ask for?

    Thanks,
    Echard
     
  2. jbrianfoto

    jbrianfoto Member

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    Hi -

    You can get them on eBay - I believe the model number is ELC or ELH. They're about $10.
     
  3. MartinP

    MartinP Member

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    And of course, buy more than one :wink:
     
  4. Katie

    Katie Subscriber

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    Just for two from here:

    Replacementlightbulbs.com

    ELH bulbs
     
  5. echard

    echard Subscriber

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    Great!! Thanks so much! I'll order two for sure:smile:
     
  6. gorbas

    gorbas Subscriber

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    Some time ago in order to have longer exposures and reduce heating I looked to replace ELH bulbs (300W/120V) with ESD (150W/120V). ELH bulbs were way less expensive than ESD. On the end I stayed with ELHs. My favourite bulb supplier in US is: http://www.sitlersupplies.com/
    Goran
     
  7. Rafal Lukawiecki

    Rafal Lukawiecki Subscriber

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    I used both ELH and ESD. ESD are dimmer and cooler, which was good for me, but they have a vastly shorter lifespan and a much higher price. I use ELH now, and I solved the brightness issue with a layer a 0.3 ND filter in the 4x5 mixing box to keep my exposures about 20 s at f/8.

    When you change to new bulbs, watch out for them having an even output, or your grades will no longer be speed-matched. You can check and correct that using the Ilford test that helps you select one of the 4 (or more for the CPM model) programmes on the 500C controller. It's not a big issue if they are not speed-matched, but if you use your 500H a lot it will make a difference in predictability of how the highlights and shadows change as you change the grades.