Title: Cassiopeia trail on Northern sky. Date: December 12, 2010 , Location: JangSoo South Korea,
10sec X 90, Total 15min exposure, ISO 6400 , 50mm F2.0 Lens, camera: Cooled 5D Mark II
refrigeration temperature: -30c SW:Photoshop CS2
http://www.centralds.net/cam/wp-content/uploads/2012/04/trail_casiopeia.jpg9361404liyunhttp://www.centralds.net/cam/wp-content/uploads/2020/02/c-logo5.pngliyun2012-04-09 02:39:092012-04-09 02:39:09Yun Lee/Cassiopeia trail on Northern sky