After the Treaty of Tianjin, Taiwan transformed Tamsui from a local fishing port into an international commercial hub. The Fenghuo section of Puting became a foreigner district. Dr. Mackay, on his evangelizing mission, engaged in medical and educational work, leaving a blend of Western and Chinese architecture on Mackay Street and Zhenli Street. Since 2020, Ting-Lun Lu has been documenting this area's historic buildings and landscapes at night under the theme "Encountering Truth." The author experimented with on-camera and off-camera flash techniques to explore their effects in night landscape photography.