Cyanotype is an alternative process exposed by UV/sunlight through use of contact negatives to produce a blue image on art paper of your choice. Cyanotype is in a single solution, and is an updated version of the original process. Using Ammonium Ferric Oxalate to give a good blue that does not wash out, this solution is twice as sensitive to UV as the traditional version. Development in water and citric acid can be used to manipulate contrast. All images aremade by the contact system, where the image depends on a negative of the appropriate size. Each kit contains chemicals, paper, gloves, glass rods and other ancillary equipment necessary for each process. Requires contact frame or plexiglass (not included).