Tri-Color Gum Printing Lecture with Diana Bloomfield

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Art Intersection

207 North Gilbert Road

# 201

Gilbert, AZ 85234

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In this intensive two-day workshop, we will learn how to print in the 19th century photographic process of gum bichromate. Using color separation negatives, we’ll learn how to make multilayered, tri-color gum bichromate prints on watercolor paper.

After mixing an emulsion of watercolor pigment, potassium dichromate, and gum arabic, this mixture is brushed on watercolor paper, dried, and by placing a negative on top it is exposed to UV light.

We then ‘develop’ the prints in plain tap water. Layers are built by repeated coatings and careful registration of negatives until a full, rich image is achieved.

We will also explore one-coat, monochrome prints, made using black and white negatives.

To kick off the workshop weekend, Diana H. Bloomfield will be giving a lecture on Friday, May 17 from 7-8pm. Join us to hear her speak about her artwork and working methods and get a preview of the gum bichromate process before the workshop!

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Art Intersection

207 North Gilbert Road

# 201

Gilbert, AZ 85234

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