Object: The OrionExposure: 300s at ISO 1600 X 5 framesCamera: Canon EOS 500D removed LPF filterLense : Canon EF 17-40mm F4L USM @32mm F4.0Filter : Kenko Pro Soften-A(W)Mount & Guide : Ioptron Sky trackerLocation: Hongchun, Gangwon, KoreaTime: Dec., 20, 2014 (GMT+9)Image Processing: Maxim DL, Adobe Photoshop CS6, PixInsight PixInsight로 보정해 보았는데, 백그라운드는 좀 좋아졌지만, 버나드…