From: Marc Gomm (marc.gomme@pandora.be)
Date: 08/25/00-02:56:59 PM Z
Thanks for your answer ...
Marc
-----Oorspronkelijk bericht-----
Van: Robert W. Schramm [mailto:schrammrus@hotmail.com]
Verzonden: vrijdag 25 augustus 2000 18:39
Aan: alt-photo-process-l@sask.usask.ca
Onderwerp: Re: FW: daguerreotype problems
Marc,
I suspected that was what you were doing and I believe that is why you are
having problems. The sensitized surface of the daguerreotype plate is so
delicate that you really cannot touch it with anything. At least
that has been my experience.
What I do is to make a large positive image (11x14) and copy it with
a 4 x 5 camera loaded with the sensitized daguerreotype plate. You
have to find an old plate holder like they used to use for glass
plates as this will work for a dag plate.
Bright sunlight exposures for an iodine/bromine plate are about
1-2 minutes at f 5.6 so I don't know about an enlarger. I have
thought about modfying a mercury vapor street light fixture to fit
on an enlarger but have never tried it. Its an idea. Also I have
seen illustrations in old books of a nineteenth century enlarger
which used mirrors to reflect sunlight through a hole in the wall
of a darkroom and then into a horizontal enlarger. That would work
but you would have to be carefull not to "fry" your negative.
Bon chance with your work.
Bob Schramm
>From: Marc Gommé <marc.gomme@pandora.be>
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: alt-photo-process-l@sask.usask.ca
>Subject: FW: daguerreotype problems
>Date: Thu, 24 Aug 2000 09:28:24 +0200
>
>
>
>
>
>Thanks for the answer ...
>The drying problem is gone ...
>
>Contact printing is what it means : contact between a positive on film and
>the sensitised plate ... you have to be carefull for scratches but it
>works.
>On the other hand there are a lot of newtonrings between the glass of the
>easel and the film. Is it possible that another sort of film will give less
>problems ?
>
>Is it possible to make a projection on the plate plate with my enlarger (Is
>there enough UV in the light of a colour DURST enlarger ?
>
>Yes more questions again ...
>
>See you folks,
>
>Marc (Belgium)
>-----Oorspronkelijk bericht-----
>Van: Robert W. Schramm [mailto:schrammrus@hotmail.com]
>Verzonden: donderdag 24 augustus 2000 0:16
>Aan: alt-photo-process-l@sask.usask.ca
>Onderwerp: daguerreotype problems
>
>
>To wash dags. Start with a low velocity stream of tap water. Follow up
>with distilled water in a wash bottle. Hold plate vertically, slightly
>tilted so top is forward. Dry with a hair dryer using low heat. If you
>get spots, rewash with more distilled water and dry again.
>
>What do you mean by "contact" printing? You cannot put anything in
>contact with a sensitized dag plate.
>
>Bob Schramm
>
>Check out my web page at:
>
> http://www.SchrammStudio.com
>
>also look at:
>
> http://www.wlsc.wvnet.edu/www/pubrel/photo.html
>
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