Born in Detroit, Michigan, 1935. Currently lives in Flagstaff, Arizona, where he is an instructor in photography at Northern Arizona University. An exhibition featuring Arentz's work was organized by the Huntington Museum of Art, Huntington, West Virginia, in 1990. His book Four Corners Country was published in 1986.
Merry A. Foresta, Stephen Jay Gould, and Karal Ann Marling Between Home and Heaven: Contemporary American Landscape Photography (Washington, D.C. and Albuquerque, New Mexico: The National Museum of American Art in association with the University of New Mexico Press, 1992)