Charles Nègre was a pioneering photographer, born in Grasse, France. He studied under the painters Paul Delaroche, Ingres and Drolling before establishing his own studio at 21 Quai Bourbon on the Île Saint-Louis, Paris.
Delaroche encouraged the use of photography as research for painting; Nègre started with the daguerreotype process before moving on to calotypes. His "Chimney-Sweeps Walking", an albumen print taken on the Quai Bourbon in 1851, may have been a staged study for a painting, but is nevertheless considered important to photographic history for its being an early instance of an interest in capturing movement and freezing it forever in one moment.
Having been passed over for the Missions Héliographiques which commissioned many of his peers, Nègre independently embarked on his own remarkably extensive study of the Midi region. The interesting shapes in his 1852 photograph of buildings in Grasse have caused it to be seen as a precursor to art photography. In 1859, he was commissioned by Empress Eugénie to photograph the newly established Imperial Asylum in the Bois de Vincennes, a hospital for disabled workingmen.