[alt-photo] Re: Zia standard solutions

[Terry King]

Jalo


It is the final volume that matters.


In most cases in alt it does not make that much difference although it is better to get in right.


There is an old rule about manuals which is don't believe a word of it until you have tested it.


My favourite manual, 'Keepers of Light', starts one recipe  with the necessary materials in pounds and gallons and the gives the recipe in grammes to three places of decimals !


Terry





-----Original Message-----
From: Vedos <vedos at samk.fi>
To: The alternative photographic processes mailing list <alt-photo-process-list at lists.altphotolist.org>
Sent: Tue, 20 Jul 2010 17:31
Subject: [alt-photo] Re: Zia standard solutions


Thanks Terry!
Yes, I am aware of the percentage solutions. I was just wondering if it is 
important to make the final volume to 25 ml (only Sullivan/Weese mentioned 
"water to make 25 ml"), or should I dissolve the chemicals to 25 ml (so the 
total volume would be a bit larger). But I guess, as I've learned from you guys, 
they are normally talking about final volumes in photographic formulas...

- Jalo

________________________________________
From: alt-photo-process-list-bounces at lists.altphotolist.org [alt-photo-process-list-bounces at lists.altphotolist.org] 
On Behalf Of Terry King [terryaking at aol.com]
Sent: Tuesday, July 20, 2010 6:49 PM
To: alt-photo-process-list at lists.altphotolist.org
Subject: [alt-photo] Re: Zia standard solutions

Jalo


A standard solution is the amount of the material to be dissolved made up to the 
total amount with water.  The recognised way of expressing it is in terms of 
percentage solutions.  If you take 20 g of something and add water to make 100 
ml that is a 20 % solution (which is what you get if you make 5 g up to 25 ml).


This way you will get consistency and avoid confusion.


TK












-----Original Message-----
From: Vedos <vedos at samk.fi>
To: The alternative photographic processes mailing list <alt-photo-process-list at lists.altphotolist.org>
Sent: Tue, 20 Jul 2010 15:17
Subject: [alt-photo] Zia standard solutions


Hello List,

I'm hoping to mix my first Ziatype solutions tomorrow. I have one basic
question:

I've been reading my three sources for Ziatype: The New Platinum Print by
Sullivan & Weese, Alt. Proc. Condensed by Chris Anderson, and Alternative
Photographic Processes (second edition) by Christopher James. They tell you to
mix your stuff with 25 ml water, only Sullivan & Weese say: water *to make* 25
ml (the final volume)...

So, should I take 25ml water and dissolve into that, or dissolve into a smaller
quantity and fill up to 25 ml... or does it really matter?

regards,
Jalo


-- If you only look at what is, you might never attain what could be --

V E D O S
Alternative Photographic Processes
Satakunta University of Applied Sciences
vedos at samk.fi
http://vedos.samk.fi
http://www.samk.fi
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