Leaky Dichro Head

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Dick Sheppard

Member
Joined
Aug 20, 2004
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12
Location
central Ariz
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Multi Format
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.
 

Mike Wilde

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Joined
Aug 10, 2006
Messages
2,903
Location
Misissauaga
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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.
 
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Dick Sheppard

Member
Joined
Aug 20, 2004
Messages
12
Location
central Ariz
Format
Multi Format
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.
 

Chan Tran

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Joined
May 10, 2006
Messages
6,803
Location
Sachse, TX
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35mm
I know the problem. I had to use tape for a while and then latter I use some screws to screw it down.
 
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Dick Sheppard

Member
Joined
Aug 20, 2004
Messages
12
Location
central Ariz
Format
Multi Format
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.
 

Curt

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Sep 22, 2005
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Are they heat warped, is the fan working as it should?
 
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Dick Sheppard

Member
Joined
Aug 20, 2004
Messages
12
Location
central Ariz
Format
Multi Format
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.
 

Curt

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Joined
Sep 22, 2005
Messages
4,618
Location
Pacific Nort
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I just push down and with a partial turn and it locks.
 
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