Canada between the photograph and the map: Aerial photography, geographical vision and the state

► I study the development of aerial photography in Canada between 1880 and 1960. ► I study a debate in photogrammetric survey: were aerial images photographs or maps? ► I claim that representation is not inherent in the aerial photograph, but needed to be produced. ► I argue that producing objects and representations requires the co-production of users. ► I show that the creation of aerial photographs as unique objects is also the creation of Canadian geographers.