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Solar filters
Hi Guys
This is a question for the solar observers out there, though i think I already know the answer. Is the DayStar ERF compatible with PST mods, my guess being that they are basically the same as Baader ERF and others, in being an 35 nm Ha broadband filter.
I ask because I see that OPT in the USA have some quite tasty pricing on the DayStars at the moment but is interesting that the 105 is cheaper than the 100 and the 90, maybe a typo.
Cheers
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