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Thread: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

  1. #671

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    Mar 2020
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    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    By the way, I didn't know anything about the bulb because Jens from Durst pro america purposely erased the model num and info on the bulb. He charged me $360 for one bulb. And bulbamerica has it for $23.....

  2. #672
    Drew Wiley
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    Sep 2008
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    14,125

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Jens' business ethics was questionable at best. You're lucky he even shipped the bulb.

  3. #673
    Tin Can's Avatar
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    Dec 2011
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    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    But his ads were fantastic, literally!

    That bulb is most likely a projection bulb

    Too bad it remains a secret...
    sin eater

  4. #674

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Finding a replacement for the 2,000 watt bulbs would be a god send. Anyone have any ideas? Is the used market and being patient the only option?

  5. #675

    Join Date
    Aug 2012
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    8

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Jens charged me about the same for few dozens laps + reflectors. And shipped none.

    I have custom producing them in China after that.
    With reflectors, I am equipped for the whole life but with lamps I mannaged to make only 10 for tests.

    Production run now is a minimum of 100 and price is 35 at the moment. Can't afford 3500 to spend just to produce 100 Colapm2000.

  6. #676

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    Jul 2006
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    Collinsville, CT USA
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    1,490

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Coming in from totally left field and having absolutely no experience with an 8x10 Durst enlarger or any bulb over 500 watts, I offer the following: Theatrical lighting people everyday deal with high wattage bulbs. Especially the ones who predate the beginning of the present LED generation. A friend needed to acquire a high wattage bulb and told me that he seemingly hit a brick wall in his quest. He befriended a lighting person at a local performing arts theater. The lighting person was able to give him several theatrical bulb suppliers to contact. He then easily acquired the bulb he sought plus spares for very reasonable prices.

  7. #677

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by Greg View Post
    Coming in from totally left field and having absolutely no experience with an 8x10 Durst enlarger or any bulb over 500 watts, I offer the following: Theatrical lighting people everyday deal with high wattage bulbs. Especially the ones who predate the beginning of the present LED generation. A friend needed to acquire a high wattage bulb and told me that he seemingly hit a brick wall in his quest. He befriended a lighting person at a local performing arts theater. The lighting person was able to give him several theatrical bulb suppliers to contact. He then easily acquired the bulb he sought plus spares for very reasonable prices.
    I am going to take some measurements of the pins on mine and hope to go down the same road to see if I can find a proper "fit".

  8. #678
    ic-racer's Avatar
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    Feb 2007
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    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by Greg View Post
    Coming in from totally left field and having absolutely no experience with an 8x10 Durst enlarger or any bulb over 500 watts, I offer the following: Theatrical lighting people everyday deal with high wattage bulbs. Especially the ones who predate the beginning of the present LED generation. A friend needed to acquire a high wattage bulb and told me that he seemingly hit a brick wall in his quest. He befriended a lighting person at a local performing arts theater. The lighting person was able to give him several theatrical bulb suppliers to contact. He then easily acquired the bulb he sought plus spares for very reasonable prices.
    Post #202:

    https://www.largeformatphotography.i...l=1#post552883

  9. #679
    ic-racer's Avatar
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    Feb 2007
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    5,507

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    This is a clip from the Thorn product book. It shows that even when in production, the HX-27 (Coolamp2000) was 'special order.'
    Click image for larger version. 

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    Last edited by ic-racer; 4-Mar-2020 at 15:00.

  10. #680

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by Michael Kadillak View Post
    I am going to take some measurements of the pins on mine and hope to go down the same road to see if I can find a proper "fit".
    As was pointed out in this exchange, it is apparent that substitute bulbs appear to be available but the limiting factor is getting them through the top opening in the reflector. Some crude measurements show that this opening would need to be expanded a bit over 1/3" to make this work. Not sure what the best tool would be to accomplish this objective or if there is any risk of damaging the reflector itself which would not be good.
    Last edited by Michael Kadillak; 4-Mar-2020 at 15:09. Reason: typo

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