Known for her work in self portraiture, meditative landscapes and photographic narrative, Siegfried has worked with the historical process of platinum for twenty-five years and has exhibited her images in Canada, the US, Italy, Germany, Japan and Mexico. In recent years, she has expanded her mode of presentation to include archival digital prints. Although forever enchanted with historical processes, she is presently working in colour.
Siegfried has had her photographs reproduced and discussed in such publications as SHOTS magazine, Schwarzweiss, La Fotografia Actual, Camera Arts, Photo Life and Shadow and Light Magazine. Her first book entitled LifeLines was published in 2000 and includes a literary introduction by the National Book Award Winner Andrea Barrett. Her work is represented in many private and public collections, including the Kiyosato Museum of Photographic Arts in Japan; the Canadian Museum of Contemporary Photography in Ottawa; and the Peter E. Palmquest Women in Photography International Archive held at the Beinicke Rare Book and Manuscript Library at Yale University, New Haven, Connecticut.