of cityscapes, or as the dominant motif, appears in the West in the canon of the Northern Renaissance, Baroque, Rococo, of Romanticism, Realism, Impressionism and Post-Impressionism. With the type having been so long established in other media, it followed that photographers would also pursue the subject as soon as technology enabled them. Nineteenth-century precursors In 1838 or 1839 the first photograph of figures in the street was recorded by Louis-Jacques-Mandé Daguerre in one of a pair of daguerreotype views taken from his studio window of the Boulevard du Temple in Paris. The second, made at the height of the day, shows an unpopulated stretch of street, while the other was taken at about 8:00 am, and as Beaumont Newhall reports, "The Boulevard, so constantly filled with a moving throng of pedestrians and carriages was perfectly solitary, except an individual who was having his boots brushed. His feet were compelled, of course, to be stationary for some time, one being on the box of the boot black, and the other on the ground. Consequently his boots and legs were well defined, but he is without body or head, because these were in motion." Charles Nègre was the first photographer to attain the technical sophistication required to register people in movement on the street in Paris in 1851. Photographer John Thomson, a Scotsman working with journalist and social activist Adolphe Smith, published Street Life in London in twelve monthly installments starting in February 1877. Thomson played a key role in making everyday life on the streets a significant subject for the medium. Eugene Atget is regarded as a progenitor, not because he was the first of his kind, but as a result of the popularisation in the late 1920s of his record of Parisian streets by Berenice Abbott, who was inspired to undertake a similar documentation of New York City. As the city developed, Atget helped to promote Parisian streets as a worthy subject for photography. From the 1890s to the 1920s he mainly photographed its architecture, stairs, gardens, and windows. He did photograph some workers, but people were not his main interest. First sold in 1925, the Leica was the first commercially successful camera to use 35 mm film. Its compactness and bright viewfinder, matched to lenses of quality (changeable on Leicas sold from 1930) helped photographers move through busy streets and capture fleeting moments. Twentieth-century practitioners United Kingdom Paul Martin