Different Ca-K options, differences?

Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews.
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Bob Yoesle
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Re: Different Ca-K options, differences?

Post by Bob Yoesle » Fri Jul 07, 2017 5:38 am

Just to ad my 2 cents worth, the relatively inexpensive (especially used) Synta 100ED f/9 scopes (Celestron, Skywatcher, etc.) don't do too bad at 394 nm either:
CaK hi res.jpg
CaK hi res.jpg (497.46 KiB) Viewed 912 times
Equivalent to a 160 mm scope at H alpha BTW... Orion ED 100 f/9, 2x TeleVue Big Barlow, DS CaK home brew, PGR Chameleon.
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