OTTAWA.- Photography was born in 1839, making the 19th century the first to be recorded in this medium. Since then, photography has evolved dramatically from the original chemical processes to today’s digital technology. But its transformation during its first decades was an equally important transition. Until April 17, the National Gallery of Canada (NGC) presents 19th-Century British Photographs from the NGC, a fascinating exhibition of some of the national collection’s key holdings, including some that have rarely been shown. The exhibition traces the development of photography in Britain over the course of the Victorian era, from early, salted paper prints, to daguerreotypes, to magnificent turn-of-the-century platinum prints. From the portraits of family and friends, small, familiar and domestic scenes, to grand and exotic scenes, the photographs in