Quote:
Originally Posted by flolic
Thanks guys!
I really don't know what's wrong with my Rocolax filter (and I don't think it's image processing error either). Ha regions are just not there...
Could it be that I turned filter the wrong way around? The red reflective layer should point to the telescope side, maybe I installed it backwards. Does it really matters? Hmm...
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I will check spectrometer calibration with neon lamp....