It's ingredients are:
1) Ferric ammonium citrate
2) Potassium ferricyanide
3) Tannic acid
4) Sodium bicarbonate or other bleaching agent
The Process:
1) A set of negatives, one for each color used, although color reproduction is quite limited, some creative effects can be achieved. Home made gum.
2) Preshrinking (if you are worried about image alignment).
3) Washing baths.
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| Mary Dorsey - Hill Billy Heaven Tri-Color gum over Cyanotype Christina Z. Anderson is a contemporary tri-color gum cyanotype. |
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| Christina Z. Anderson - Lunch on the dock Tri-Color gum over cyanotype |
"AlternativePhotography.com Historical Photographic Methods in Use Today – the Art, Processes and Techniques of Alternative Photography. Photography as It Should Be: Hands On, Fun and Inspiring." Marydorsey Wanless. N.p., n.d. Web. 16 Sept. 2016. "Christina Z. Anderson." Christina Z. Anderson. N.p., n.d. Web. 16 Sept. 2016.
