Nathan “Nat” Louis Finkelstein (January 16, 1933 – October 2, 2009) was an American
photographer and
photojournalist. Finkelstein studied photography under
Alexey Brodovitch, the art director of
Harper’s Bazaar and worked as a
photojournalist for the
Black Star and PIX photo agencies, reporting primarily on the political developments of various subcultures in New York City in the 1960s. In 1964, Finkelstein entered
Andy Warhol's
Factory as a photojournalist and remained for three years; Finkelstein's photographs from this period are now regarded as some of the most iconic of the time.