南丫島上空出現的龐然巨物
Setting:
Camera : #Canon #80d mod
Lens: #Tokina 11-20mm 2.8 @20mm
Sky: Iso 800, f3.2, 2mins x 19
Foreground: Iso 800 f3.5 30s x 11 off filter
Filter: #Nisi Neutral Night FIlter, #Optolong L-Pro Canon apsc Filter
Tracker: #ioptron Skytracker Pro
Calibration: Dark x 20 Bias x 50
Software: pixinsight, photoshop cc
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