brightness difference
Why do I have differences in brightness in the frame when I adjust the etalon of my PST? I have a brighter area (band, perhaps) that moves when I adjust it, and I don't understand what the problem is PST and ASI20 and barlow cemax
brightness difference
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alessbonsai
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marktownley
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Re: brightness difference
It's just the sweetspot of the PST
http://brierleyhillsolar.blogspot.co.uk/
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