If you enjoy my work, and would like to see more, please subscribe to my profile on Facebook. Summary[edit] Description: English: Brown Thornbill (Acanthiza pusilla) at Risdon Brook Dam, Tasmania, Australia Camera data Camera Canon EOS 400D Lens Canon EF 400mm f5.6L Flash Fill w/ Fresnel Extender Focal length 400 mm Aperture f/5.6 Exposure time 1/400 s Sensivity ISO 1600. Date: 30 November 2008. Source: Own work. Author: JJ Harrison (https://www.jjharrison.com.au/). Camera location42° 48′ 18.48″ S, 147° 20′ 07.32″ EView all coordinates using: OpenStreetMap-42.805134; 147.335367.