The photographs in the ongoing Sky Series are initially captured as sunrises or sunsets. Cahan uses as many as four different cameras ranging from 6 x 7 film to digital. Employing dozens of graduated filters traditionally used by filmmakers, his objective is to create a window into a time and a place, and to demonstrate how memories and colors shift and become abstract. Cahan produces chromium prints of each image numerous times until the result is seamless, free of banding or blemish. Beyond technical description, the picture evokes the presence of, and the artist’s reverence for, nature at its most sublime.