Cyanotype is a ferro-prussiate photographic process known for its blue color. It was famously used by a photography pioneer Anna Atkins who has often been coined as the first female photographer.
This video will walk you through the steps of mixing your own chemistry, applying the coating mixture, and exposing and developing your own cyanotype print.
Penumbra Foundation is a nonprofit organization that brings together the art and science of photography through education, research, outreach, public, and residency programs.
Its goal is to be a comprehensive resource for photographers at any level: artists, students, professionals, historians, researchers, conservators, and curators.