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M42 獵戶座大星雲 Orion Nebula

CANON EOS 7D

Lens : Tamron 70-200 f/2.8

Focal length 175mm , ISO1600 , f/2.8 , 1.6sec

70% crop

light frame x 427

dark frame x 26

offset x 2

Sofrware : DeepSkyStacker

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Uploaded on January 18, 2015