The Extended Moment, published by 5 Continents Editions in 2018, marks fifty years of collecting photographs at the National Gallery of Canada. Rather than presenting photography as a single, uniform history, the book brings together a wide field of practices and periods: early experiments by figures such as Charles Nègre and William Henry Fox Talbot sit alongside later work by artists including Diane Arbus, Robert Frank, Lee Friedlander, Isabelle Hayeur, and Mark Ruwedel. Vernacular and news photographs by unknown photographers are included as part of that broader account.
Its subject is therefore both a collection and the changing conditions that make a collection possible. The book considers the historical and art-historical circumstances of photographic production, while also attending to the physical nature of photographs and to the advances in preservation and conservation that influenced museum acquisition and exhibition. The result is an account of photography shaped not only by individual images, but by institutions, technologies, and sustained acts of looking.
The breadth of the selection is one of its defining qualities. The publisher identifies 164 artists, while the named photographers represent only a selection rather than a complete credit list. This range gives the volume a productive tension: celebrated canonical figures appear beside less familiar material, and the history of the medium is understood through its varied uses, processes, and contexts. Essays by Ann Thomas, John McElhone, Marc Mayer, and James W. Borcoman add institutional and curatorial perspectives to the photographic material.
For collectors, the book deserves attention as a substantial record of a major museum photography collection at a meaningful anniversary point. Its 336 pages and 319 colour illustrations support an extended reading of the holdings rather than a narrowly focused monograph. In hardcover, measuring 22.86 by 29.21 centimetres, it is conceived as both a historical survey and a considered record of how photographic knowledge is assembled, preserved, and revised.
