Great Orion Nebula (M42), Light pollution filter test M42, 광해 필터 테스트 Great Orion Nebula (M42), Light pollution filter test M42, 광해 필터 테스트 오리온대성운 (M42) 광해 필터 테스트. 3 min single shot. 3분 노출 사진 한장. 2020.10.25. 19:41 (UT). Quad BP II filter test in the city sky (Bortle scale 8). 3 min single shot. 304mm refractor + ASI6200MC Pro camera + Quad BP II filter, 3min single shot. No Dark, No Flat, No Bias. http://cometsky.com/astrophotos/m42_20201026_med_bsyeom.jpg 2020.10... 2020. 10. 26. 이전 1 다음