yeah, i actually like them untoned better than toned... which is like
sorta uncouth, but who cares. :)
On Feb 8, 2004, at 5:38 PM, Eric Nelson wrote:
> yes i have. i've never tried brush sensitization.
> reilly mentions concentrations ranging from 10-12% for
> albumen, so your mileage may vary as well.
>
> your gold toner concentrations can negatively affect
> the print as well. too much can give a blotchy green
> effect. getting the right pH is important as well.
> Eric
>
>
> --- "Adam. Waterson" <artistboi@speakeasy.net> wrote:
>> Thanks Eric.. yeah, I am not using a bath for
>> sensitizing, because of
>> the size of my prints I am using a Haki Brush and
>> applying selectively
>> to the paper by hand.
>>
>> So u've had luck with a 12% sol'n?
>>
>> On Feb 8, 2004, at 4:59 PM, Eric Nelson wrote:
>>
>>> I always followed Reilly's rule of thumb below
>>> following sensitization of a number of prints.
>>>
>>> "Replenish the lost volume with a silver nitrate
>>> solution twice as strong as the original bath. For
>>> example, if the original strength and volume were
>> 1
>>> liter of 12% silver solution and after a printing
>>> session only 850 ml remained, replenish with 150
>> ml of
>>> 24% silver solution. This should restore the
>> silver
>>> bath to the original strength and volume. If
>> citric
>>> acid is used in the sensitizing solution, it is
>>> replenished strictly on the basis of volume lost
>> from
>>> the solution. For example, if the liter of
>> sensitizing
>>> solution had originally contained 5% citric acid
>>> (i.e., 50 g) and 850 ml was left after a printing
>>> session, then the missing 15% of the original
>> volume
>>> of 1 liter represents a loss of 15% (i.e., 7.5 g)
>> of
>>> citric acid. Thus the 150 ml of replenisher would
>>> contain 7.5 g citric acid in addition to the
>> required
>>> amount of silver nitrate."
>>>
>>> Also because of the organic albumen & salt getting
>>> into the silvering solution, the solution will
>> start
>>> to turn dark and start causing problems in
>>> sensitization and the resulting prints. By adding
>>> kaolin powder (active ingredient in KeopectateŽ =D
>> )
>>> and shaking the solution, and allowing the kaolin
>> to
>>> settle overnight, the organic contaminants are
>>> removed.
>>>
>>> You can find all the specifics here
>>>
>>
> http://albumen.stanford.edu/library/monographs/reilly/index.html
>>> Eric
>>> http://www.eman-photo.com/
>>>
>>>
>>> --- "Adam. Waterson" <artistboi@speakeasy.net>
>> wrote:
>>>> Ey y'all
>>>>
>>>> I'm working with Albumen printing and am coming
>>>> across a bit of a
>>>> difficulty with my sensitizing material. I was
>>>> wondering if any of you
>>>> had a good "recipe" for the amount of Silver
>> Nitrate
>>>> to Water. I know
>>>> there is a threshold at which too much Silver
>>>> Nitrate makes the print
>>>> weaker, not stronger. Was just wondering anyone
>> had
>>>> a really good
>>>> concentration worked out, I know it has to
>>>> correspond to the pH of the
>>>> Albumen you're using, but I was just hoping for a
>>>> point to start
>>>> experimenting more heavily off of.
>>>>
>>>>
>>>> ALSO... Where do people get Silver Nitrate from?
>> It
>>>> is out of stock at
>>>> TriEss, and I don't buy from photographers
>>>> formulary, it is far too
>>>> expensive through them. So anyone know other
>>>> chemical dealerships?
>>>> Thanks!
>>>> Adam.
>>>>
>>>
>>>
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>>
>
>
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Received on Sun Feb 8 23:20:03 2004
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