Changed the focuser of my 150mm PST mod, the optical train seems more straight now. Effect was that I had less reflections and a bigger "sweet spot". Seeing was not too good yesterday, but managed to image some nice proms.
160 mm D-erf / 150 mm f/8 Skywatcher / 1,25x Glasspath / Baader 35nm H-alpha / PST-etalon / Lunt BF 1200 / 2,5x Powermate / PGR Grasshopper IMX 174. Processing was done in Photoshop.
Thanks for watching! Bart.
14092018_09h57m_SW150_GP1,25_PM2,5_SS_PS2 by bart moors, on Flickr
H-alpha proms, 14 september 2018
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