In 2012, the author was given an opportunity over several weeks to photograph inside an old industrial plant that was being converted to a business park. R Thomas Berner used the high dynamic range technique in taking the photographs. That involves multiple exposures at different settings, which enables one to capture a range of detail. He had learned the technique at a workshop in Santa Fe, New Mexico, from someone who had used it in creating a book about the aftermath of Hurricane Katrina in New Orleans.