This Summer we had a really fun camp for 10-12 year olds called Freeze Frame. Campers learned about a variety of photography processes and how the technology has progressed over the years. One of the things they learned about was Cyanotypes or the blueprint process.
Generally, people will associate the word "blueprint" with architectural plans or layouts but the term came from the fact that a process similar to cyanotyping was used to make inexpensive copies of plans without a huge investment in technology.
The Freeze Frame class created cyanotypes by treating both cotton t-shirts and cotton rag paper with cyanotype chemicals and then using either photographic negatives or opaque objects to block the sun and expose the treated surface to the sunlight.
In this video, Freeze Frame educator Andrea Gilbert, who developed the class curriculum, takes us through the process!
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