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Originally Posted by danielsun
Great stuff there Sheeny!! A PST is on my eventual shopping hit list.
Question : Can you see sun spots as well as prominences? And what difference does the calcium-k pst make?
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You can but really white light filters are probably better for sunspots and H alpha better suited for prominances..but people have taken some stunning images of sunspots with a PST-notably Pete Lawrence of Selsey observatory
As for Ca K -for the vast majority of people -you will see nothing.It's mainly for imagers though some people do report being able to visually observe with a CaK