"Sandstone Narrows" by John Sexton John Sexton (American, b. 1953). A silver gelatin photograph, signed and numbered 38/200 in margin, with photographer's label to verso; 9.5" x 13".Sexton worked for Ansel Adams from 1979 to 1984 (when Adams died), first as Technical and Photographic Assistant, then as Technical Consultant. Sexton served as Special Projects Consultant to the Ansel Adams Publishing Rights Trust following Adams' death.Sexton has taught at numerous photographic workshops in the past, and continues to do so, with his wife Anne Larsen, a talented photographer in her own right, through his long-running eponymous fine art photography workshop program. For many years he was a co-director of the Owens Valley Photography Workshops with fellow co-directors Bruce Barnbaum and Ray McSavaney.