Cyanotyping is essentially a photographic process that produces a copy (called a blue print) of the original, printing the image using UV light (either sunlight or artificial). Negatives or even flat objects can be used to create a positive image. In this method of printing, first the paper (ideally watercolour) is coated with a solution made up of ferric ammonium citrate, potassium ferricyanide and distilled water. Once dry the photosensitive paper can be exposed to UV light, with the negative or object sandwiched between the paper and a clean pane of glass. After exposure the paper is submerged in a water bath for development where the image will fixed in blue tones.

I have made a few cyanotype prints over the last week using mostly botanical objects, and experimented with the addition of bubbles and sea salt crystals to see their effects during exposure. I feel like there is a lot more I want to explore and experiment with this method of printing.