Herbarium
Cyanotype prints, Ed. 1/1, 2020.
These images were made around Södersjukhuset Hospital in Stockholm, during the COVID-19 pandemic.
The cyanotype (from Ancient Greek κυάνεος (kuáneos) – “dark blue”, and τύπος [túpos) – “mark, impression, type”) is a slow-reacting, economical photographic printing formulation sensitive to a limited near ultraviolet and blue light spectrum, which lies in the range 300 nm to 400 nm, known as UVA radiation. It produces a cyan-blue print used for art as monochrome imagery applicable on a range of supports, and for reprography in the form of blueprints. For any purpose, the process usually uses two chemicals: ferric ammonium citrate or ferric ammonium oxalate, and potassium ferricyanide, and only water to develop and fix. Announced in 1842.
