In 1989 I attended a workshop in Yosemite National Park put on by the Ansel Adams Gallery. It was a wonderful experience meeting and learning from so many excellent photographers. One of the instructors was a former assistant to Ansel, John Sexton. John was well known for making images in low light situations. By extending his exposure time he made images that were very luminous. On the way home I tried this for myself for the first time, this photo was made in a public campground near Mono Lake and Lee Vining. Up til now most of my photos had exposure times that were a fraction of a second, this photo of aspens had an exposure time of a couple minutes. It is the first of many images I have made with longer exposure times.