[alt-photo] Re: coffee and cyanotype

[francis schanberger]

Thank you  Chris! I'll try this.

I'm currently writing a proposal for a summer residency in which I will
have high school age participants make anthoypes out of their parents
pajamas.

-francis


On Thu, Jan 12, 2012 at 10:49 PM, Christina Anderson <zphoto at montana.net>wrote:

> Interesting post from 2004:
>
>
> From: RHobbs3 at aol.com
> Date: 09/09/04-06:34:42 PM Z
> Message-id: <e5.a9def0.2e7250a2 at aol.com>
> I have used old cold coffee for my first wash. Coffee has an amazing
> collection of acids, which change depending on the darkness of the roast.
> If I cover
> the print with coffee and let it sit for a minute or five then proceed with
> the wash, my final blue shifts toward gray or black. I suspect the tannic
> acid
> in the java is what does this.
> For some reason, I get less staining of the paper base this way than I do
> if
> I make the print first and tone in coffee later.
>
> Rob Hobbs
> Christina Z. Anderson
> christinaZanderson.com
>
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-- 
francis schanberger

www.francisschanberger.com