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Old 10-10-2021, 09:02 AM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 8,458
MiniSHG with the Astronomik IR-Block filter

I ordered the Astronomik IR-Block filter as the transmission curved showed a good response in the 390nm bandwidth.
Combined with the 0.9 Baader ND filter, this seems to be a safe and workable arrangement.
I'll use this combo for all wavelengths other than H alpha, where I'll change over to the Baader 7nm filter.
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