Creating a Cyanotype
This is how I create permanent photographic prints using chemistry discovered by Sir John Herschel in 1842. I don’t always listen to Django Reinhardt, but it helps.
No darkroom is required, only a digital image converted to a negative, an inkjet printer, paper, a bit of non-toxic chemistry, sun and water. The paper used in this demonstration video is one of my favorites, Sour Apple Pop-Tone, an acid-free 120lb cover paper from the French Paper Company of Niles, Michigan. In fact nearly any substrate can be used. I’ve successfully printed on raw canvas, river rock, tea bag paper, and glossy inkjet paper. Tea toning is not necessary, but does covert the Prussian Blue image to a variety of permanent sepias and blue/blacks.
Using just the sun, the sky is the limit.