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Sun Printing Cyanotype Impressions

Sun Printing Cyanotype Impressions. “The Pencil of Nature”. Anna Atkins(1799-1871). English Botanist Father George Children was a Scientist First Woman to Publish a book entirely of Photographs No hand drawn Illustrations

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Sun Printing Cyanotype Impressions

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  1. Sun PrintingCyanotype Impressions “The Pencil of Nature”

  2. Anna Atkins(1799-1871) • English Botanist • Father George Children was a Scientist • First Woman to Publish a book entirely of Photographs • No hand drawn Illustrations • She wrote letters back and forth to Henry Fox Talbot the inventor of Photography • She learned about the Cyanotype method from the scientist Sir John Herschel a family friend

  3. Algae: Cyanotype Impressions • Published in 1843 • Used Photography as an accurate medium for scientific Illustration Algae

  4. Algae: Cyanotype Impressions • This Reference book took 12 years • Contains over 400 prints • Only 12 of these books exist and can be viewed in a British Museum • The photos are still in good condition

  5. Cyanotypes of British and Foreign Flower Plants and Ferns (1854) • Cyanotype also known as Blue Print • She called her work shadowgraphs Horse Tail

  6. Cyanotypes of British and Foreign Flower Plants and Ferns (1854) • Can you guess what this is?

  7. Cyanotypes of British and Foreign Flower Plants and Ferns (1854)

  8. What is a Cyanotype Photo ? • A Blue Print Process • Paper is coated with an Iron Salt solution (potassium ferricyanide) and Ammonium Citrate • An object is fixed on this paper (Surface Negative) under glass

  9. How it works • When exposed to Sun Light a chemical reaction occurs • The paper is washed and removes the exposed chemical area • This results in a white image on a deep blue background • This image is the “positive” or outline of the object used.

  10. Do Photographers Still use the Cyanotype Process Today? • Certainly - it is inexpensive • You don’t need a dark room • Some Artists hand coat or “Paint” the sensitized paper • Some Artists coat other mediums such as wood or Cloth • Many use actual Photo Negatives on sensitized paper

  11. Linda McCartney 1941-1998 • A Contemporary Photographer • Wife of Paul McCartney of The Beatles • Sunprints A book of photographs influenced by 19th Century printing

  12. Zeva Oelbaum“Blue Prints” • First book of photographs • Uses the cyanotype process in modern times • Uses her “Negatives” and exposes them to natural light on sensitized paper.

  13. Some Terms to Remember • Negative • Positive • Shadowgraphs • Blueprint • Symmetry • Principle of art Line and Texture

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