Since photography’s earliest inception, women have been at the forefront of the medium’s formation and development. The novel process of capturing images of the world found experimental practitioners in women scientists, artists and amateurs in the 19th century, such as Julia Margaret Cameron, Anna Atkins, Constance Fox Talbot and many more. Across the decades, the visions of women artists expanded to meet photography’s myriad possibilities – encompassing the realms of politics, fashion, war, modernist-image making and self-representation. To honor Women’s History Month and the expansive contribution by women to the history of photography, we’ve highlighted a selection of women photographers who will be included in Sotheby's upcoming Photographs auction (5 April, New York). Click ahead to discover more about these 11 pioneering women with cameras.