From: Loris Medici ^lt;[email protected]>
Date: 10/13/05-01:59:14 AM Z
Message-id: <001b01c5cfcc$047c4c20$f402500a@altinyildiz.boyner>

Add me to the list. I usually filter the Vandyke solution (using paper
coffee filter) the day after mixing it. Even doing so, the emulsion
shows further precipitation later (1 week after mixing, about 1/4 amount
compared to the first precipitation). I filter it too. Much later, when
silver plating occurs inside the bottle, I throw away the old emulsion
and mix new sensitizer.

BTW, I never managed to reach good Dmax with Vandyke by just one coat. I
always double coat it. What is your experience? Do you get good Dmax
with one layer Vandyke? If so, I will start to think I'm doing something
wrong mixing it (I use directions given in Wynn White's article @ - or my concept for good Dmax is a little bir


-----Original Message-----
From: Fabiano Busdraghi []
Sent: 13 Ekim 2005 Perşembe 10:43
Subject: Re: VDB

I also use the liquid on top. Mixing the solution just before coating I
had a grainy and uneven result.

--- "Weber, Scott" <> ha scritto:

> Thanks for all of the replies, I think I isolated the problem. I was
> storing the coated paper under plastic containers that were not light
> tight. The paper was exposed to small doses of florescent light for
> several hours. I do
> have another question about the precipitate that forms in the
> Should I mix that into a suspension before coating or is it best to
let it
> settle and just use the liquid on top?
> Thanks,
> Scott B. Weber
> Associate Professor of Photography
> Department of Fine Arts
> Barry University
> 11300 NE 2nd Avenue
> Miami Shores, Florida 33161
> (305) 899 4922
> -----Original Message-----
> From: []
> Sent: Tuesday, October 11, 2005 8:26 PM
> To:
> Subject: Re: (no subject)
> I have used very old VDB solution succesfully, although little flakes
> of silver seem to precipitate out of the solution.
> Rob
> The information transmitted is intended only for the person or entity
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> University - Miami Shores, FL (

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Received on Thu Oct 13 01:55:45 2005

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