He is a fifth-generation descendant of Adolfo Alexander, a German daguerreotypist and photographer. In 1985, he was a founding member of the Dr. Julio F. Riobó Center for Research on Early Photography in Argentina (CIFAA). In 1992, together with Miguel Ángel Cuarterolo and Juan Gómez, he launched the renowned Conferences on the History of Photography. From 2006 to 2018, he served as historical photography advisor to the Benito Panunzi Photo Archive at the Mariano Moreno National Library. For the past two decades, he has also worked as a journalist specializing in early photography for Clarín.
He is the author of Estos débiles papeles son más fuertes que los ladrillos (2021), as well as numerous catalogs, articles, and essays on the history of photography in Argentina, including La fotografía en la historia argentina (2006), El caserón de Rosas (2013), and Escenas de la vida cotidiana (2017). Together with Luis Priamo, he has co-edited photography books on Samuel Rimathé, Christiano Junior, H. G. Olds, and Samuel and Arturo Boote. He is currently president of the Ibero-American Society for the History of Photography.
Photo credit: Ricardo Sanguinetti