Hi Jonathan!
Have you tried this formula? What shades have you acheived? Do you
have any prints scanned that I could look at? Did you have tannic acid
stains in the paper fibers?
Just a boy and his questions...thanks,
Garimo
>For those of you interested in toning cyanotype brown here is an excellent
>method.
>
>Prepare an aqueous solution (part A) as follows:
>Ammonia 10ml
>Water 1000ml
>
>Prepare an Aqueous solution (part B) as follows:
>Tannic acid 20-50grams
>Water 1000ml
>
>Put the cyanotype in solution A untill the blue color is completely
>bleached.
>
>After the cyanotype has bleached away put it into the tannicc acid solution
>till it reaches the desired density.
>
>Notes: Print cyanotype darker than desired as there is loss of some density
>from the bleach bath.
>Also woth note, there can be some staining of the paper and hightlights but
>can partly be avoided by not toning heavily.
>
>Have fun
>
> Sincerely,
> Jonathan
>
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