Henle emigrated to the U.S. in 1936 as a contract magazine photographer, working for such prestigious publications as Fortune, Life, Town & Country, Madamoiselle and Harper's Bazaar. During his tenure at Harper's, the magazine's illustrious art director, Alexey Brodovitch, designed Henle's book, Paris, published in 1947.

Henle's work is represented in major museum collections, including: the Museum of Modern Art, the International Center of Photography, and the International Museum of Photography (George Eastman House), New York; the Gernsheim Collection at the University of Texas, Austin; the Center for Creative Photography, University of Arizona, Tucson; Kunsthaus, Zurich; Foto-Historama Agfa-Gevaert, and Museum Ludwig, Cologne; Fotomuseum, Munich, et al. Henle's archive is housed in the Harry Ransom Humanities Research Center of the University of Texas, Austin.