Thread: [SOLD] Solarmax 40
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Old 27-04-2011, 09:12 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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SM40 as a double stack on the PST
These SM40 filters can easily be fitted to the front of a PST as a double stack filter. This dramatically improves the surface resolution ( down to around 0.4A) and gives fantastic views of filaments, plage and sunspot detail.