Wet cyanotype is a photographic process created by Sir John Herschel in1842.
Based on iron chemical compounds, wet cyanotype takes its name from its typical blue/cyan coloured prints. Maybe the simplest and most immediate among ancient printing techniques, it requires a negative of the same size of the final image, to pronto on paper or any other material sensitized with an Iron Ammonium Citrate and Potassium Ferricyanide: these two elements, once mixed, become sensitive to the solar (UV) light. Once, inserting a photographic negative or one or more semi transparent objects between the UV light and a sensitized sheet of paper, a photographic image will be produced..
Participants will be leaded in a fascinating journey through every step of the processing: setting digital negatives in photoshop or setting objects to print shapes and textures, printing digital negatives on digital film, sensitizing the paper, exposing the frames to UV light and image processing.
Sali d’Argento makes available to participants an UV lamp and an UV contact printer, that make possible to attend the workshop even in the event of direct sunlight failure (cloudy sky). This one-day workshop is open to everyone, adults and children. At the end, each participant will get the opportunity to produce almost one wet cyanotype to take along.