Born 1918, Brooklyn, New York
Lived in Long Island, New York

Leipzig joined the Photo League in 1942 and took part in Sid Grossman's Documentary Workshop. He went on to teach the Advanced Technique class (1944, 1946, 1950) and to exhibit his work at the League while also employed as an editor and staff photographer for PM magazine (1942–46). Outside the League, Leipzig also took part in several group shows that included League members, among them "New Photographers" (1946), "Newly Purchased Work" (1950), and "The Family of Man" (1955)—all at the Museum of Modern Art. In 1949 he attended Paul Strand's Special Projects class. After the League disbanded, Leipzig went on to pursue a successful career as a freelance photojournalist. His photographs have appeared in magazines such as Fortune, Look, Parade, and Natural History and in numerous solo and later group exhibitions. Leipzig was a professor of art and the director of photography at the CW Post Campus of Long Island University for almost twenty-five years (1968–91). In 2004 he won the Lucie Award for Outstanding Achievement in Fine Art Photography.