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Two single shot obtained using the IS DMK31AF03 on Horse Head Nebula in Orion with a H-alfa filter (6nm) at 315" and 632":
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Image obtained from processing of 6 frames at 315" and 3 at 632" (Sigma-median) just the offset subtractred:
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The offset frame at 4" to evidentiate the hotpixels:
The dark frame at 315" to evidentiate the termal noise:
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