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Dianne Longley

Dianne Longley Cyanotype Upsidedown-Rightside up

Upside Down and Right Side Up – Cyanotype  Cyanotype Traditional 
The Cyanotype process was presented by Sir John Herschel in 1842 to the Royal Society of London. A Cyanotype is based on combining ferric ammonium citrate with potassium ferricyanide. Working solutions are created from each of the chemicals. These are mixed in equal parts before coating onto the paper surface. The light sensitive surface after dying in the dark is exposed to UV (Sunlight) using either a negative or object to create an image. It is fixed by washing in water. The characteristic cyan blue colour image is embedded in the fibres of the paper. Sir John Herschel’s cyanotype process became known as the Blueprint or Prussian blue.

About Dianne Longley Australia: Dianne works with a range of traditional and digital processes including printmaking, encaustic and oil painting, pokerwork on wooden panels, artist books, on-glaze porcelain, and small-scale bronze casting. In 2014 she moved from Adelaide, South Australia to Trentham in the Central Highlands in Victoria and now runs printmaking workshops in her Agave print studios.