- LPR(광해) - UV(자외선/적외선) + IR cutter => DSLR 천체 사진 촬영 - UHC/LPR (광해필터) = UHC-S Nebular, H-Alpha(565nm) 극대화, UHC: Ultra High Contrast 천체사진 캐논 카메라 설정 http://www.covingtoninnovations.com/dslr/EOS300Dastro.html http://www.astropix.com/HTML/I_ASTROP/SETTINGS.HTM http://astronote.org/board/index.php?section=&print=&menu=7255&table _name=photom&job=view&idx=24679&page=1&order=desc&sort=datetime&search_title=&search _word= or http://etoiles.tistory.com/1 Astrophotography Techniques http://www.astropix.com/HTML/I_ASTROP/TOC_AP.HTM Digital Image Processing http://www.astropix.com/HTML/J_DIGIT/TOC_DIG.HTM