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  1. #1

    Join Date
    Aug 2004
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    central Arizona
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    Leaky Dichro Head

    My ancient Beseler 4545 head has sprung a giant light leak. I opened the
    top lid to check some stuff and now the #%//<*?+ will not stay closed!!
    The plastic screw down bolts refuse to engage the hole in the case of the
    head. These bolts are a two piece, spring-loaded affair that I cannot make
    function. I suspect I am surely not the first person to become enraged
    at these little rascals. Your suggestions appreciated, other than plenty of gaffers tape to hold it down.

  2. #2
    Mike Wilde's Avatar
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    Aug 2006
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    Get a roll of cinefoil. Matte black on both sides heavy duty tin foil. It stops light leaks on 1000W theatre lights, so an enlarger head will not put a 'dint' to the coating. Fold it to suit and make a new lid.

    This stuff has a ton of uses in stidio settings as well. Paired with a pair of pliers, and a collection of dying coat hangers, and light modifiers spring to life with almost no cost.
    my real name, imagine that.

  3. #3

    Join Date
    Aug 2004
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    Light Leaking Dichro Head

    Thanks for your suggestion. The problem is that head has a 4x5 Diffusion
    Mixing Chamber, and sticking out of this is yet another light sensor. The
    inside of the metal the hinged metal cover has semi-circular spring steel
    coil which rests on the light arttenuator and requires considerable pressure
    to close, perhaps 10-12 pounds. I assume this device is designed to keep
    the Diffusion Cahmber firmly in place. It also assures that if the bolts do no
    do their part in holding it down, the lid goes sproooiiiiinggg open. So, the
    solution seems to be limited to snugging the lid into place without the bolts
    if I can't figure out how they are supposed to work. Yards of gaffers tape,
    duct tape, or ropes maybe. Fortunately, I have a good condenser hear for
    use, but I like the Dichro.

    Anyway, thanks for offering a possibility.

  4. #4
    ic-racer's Avatar
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    Feb 2007
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    Midwest USA
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    Could you post a picture of the problem?

  5. #5

    Join Date
    May 2006
    Location
    Aurora, IL
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    I know the problem. I had to use tape for a while and then latter I use some screws to screw it down.

  6. #6

    Join Date
    Aug 2004
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    central Arizona
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    Can't do it Chan. I have no digital camera equipment and don't know how to use it. I am still
    operating photographically pretty much as I did before digital came on the scene.

  7. #7
    Curt's Avatar
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    Are they heat warped, is the fan working as it should?
    Everytime I find a film or paper that I like, they discontinue it. - Paul Strand - Aperture monograph on Strand

  8. #8

    Join Date
    Aug 2004
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    No heat warping, fan working just fine. It is just that the fasteners don't function, or that I don'how to twist them correctly after all these years.

  9. #9
    Curt's Avatar
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    I just push down and with a partial turn and it locks.
    Everytime I find a film or paper that I like, they discontinue it. - Paul Strand - Aperture monograph on Strand

  10. #10

    Join Date
    Aug 2004
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    central Arizona
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    Quote Originally Posted by Curt View Post
    I just push down and with a partial turn and it locks.
    Curt, that was how it was for years, just turn and lock. Doesn't work
    these days. Gotta come up with anotnher solution. Thanks for your
    interest.



 

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