2inchBaader UV/IR cut filter?

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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grdc65
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2inchBaader UV/IR cut filter?

Post by grdc65 » Tue May 09, 2017 9:33 am

Hi all,just wondering whether I can use a 2inch baader UV/IR cut filter as a internal
sub aperture ERF filter with a 90mm mod scope?Thanks,Nick.

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Merlin66
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Re: 2inchBaader UV/IR cut filter?

Post by Merlin66 » Tue May 09, 2017 10:25 am

Nick,
I would recommend the Baader 35nm Ha as a better universal sub aperture ERF filter.
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Astrograph
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Re: 2inchBaader UV/IR cut filter?

Post by Astrograph » Thu Jun 08, 2017 4:06 pm

I would avoid the Baader UV/IR. We used to offer it but it did not stop a polariser getting burnt behind it on a 100mm scope. The astronomik seems much better despite having a window in the calcium band. As Merlin66 says, a 35nm Ha is better still.

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