Cyanotype Process


Cyanotype is a chemical photographic process originally invented in 1842 by the scientist Sir John Herschel as a convenient method of making copies of his notes. It continued to be used by architects and engineers to copy technical drawings until the mid 20thC, the distinctive cyan blue colour leading to the term ‘blueprints’ for these copies.

Wendy's process involves manipulating digital images in Photoshop and printing them onto large format transparent film in an inkjet printer. The resulting digital negatives are then placed, along with found objects, onto archival cotton rag paper which has been coated with Cyanotype sensitiser. The light sensitised paper is exposed in sunlight, washed and dried. You can read more about cyanotype here and here.


© Wendy Catling