** Solar Spectrum Advanced Solar Observer (ASO) 32mm / 0.2A Filter **
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Hi all,
I have a Solar Spectrum 0.2 Angstron Ha filter for sale. The Etalon is in excellent condition, having just come back from SS with new hard blockers and a clean bill of health. It works beautifully, and provides excellent views of both promenences and surface features - and thanks to the new blockers, should work beautifully until the sun goes red giant, some 4 billion years in the future.
ASO filters provide clear views of the solar disk for scopes up to 2700 mm fl. They do require a energy rejection filter (ERF) atop the objective, and a telecentric before the filter. I have both available, and if you need them, let me know and I'll quote a price. The etalon itself comes with a thermal oven, power cable, and connecting cable. On-frequency temperature is around 32 C.
Clear days to all, and best to everyone in the meanwhile -
I have a Solar Spectrum 0.2 Angstron Ha filter for sale. The Etalon is in excellent condition, having just come back from SS with new hard blockers and a clean bill of health. It works beautifully, and provides excellent views of both promenences and surface features - and thanks to the new blockers, should work beautifully until the sun goes red giant, some 4 billion years in the future.
ASO filters provide clear views of the solar disk for scopes up to 2700 mm fl. They do require a energy rejection filter (ERF) atop the objective, and a telecentric before the filter. I have both available, and if you need them, let me know and I'll quote a price. The etalon itself comes with a thermal oven, power cable, and connecting cable. On-frequency temperature is around 32 C.
Clear days to all, and best to everyone in the meanwhile -
Funding Member
