Quote:
Originally Posted by lesbehrens
i also have something else to add. i i bought a Coronado solar telescope do the come doubled stacked? or do we need to buy a another filter?
les
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Like the Lunt you can get them either double stacked or not, depends on how much you're prepared to pay for it. Apparently it's better to get them double stacked at the factory as the match the two etalons to give you a better result.
Cheers
Stuart