CYANOTYPES
2The mixture of the two chemicals
is then applied evenly onto water-color
paper.
march 2021 54
WBM
8 The final print goes through one more
rinse before being hung to dry.
1 Wilmington photographer Curtis
Krueger mixes together equal parts
ammonium ferric citrate and potassium
ferricyanide, the two required chemicals
for the cyanotype process.
3An image of cypress trees, previously
printed as a negative, is positioned on
top of the dry coated watercolor paper.
4A piece of glass is placed over the
image and fastened in place.
5 In bright sunlight, it takes only four
minutes to expose the image onto
the coated watercolor paper.
6 After exposure is complete, the
paper is then placed into a tray of
water and rinsed.
7 Hydrogen peroxide may be applied
for a deeper, richer, darker blue back-ground.
Krueger sometimes uses tea
bags for a sepia tone.
HOW IT’S DONE
A step-by-step guide to
creating a cyanotype
PHOTOS BY ALLISON POTTER
