Baader f/2 Highspeed-Filterset H-alpha / OIII / SII

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Baader f/2 Highspeed-Filterset H-alpha / OIII / SII

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€ 445.00 Price excl. German VAT tax (19%): € 373.95
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  • f/2 Highspeed Filterset consisting of 3 Filter: H-alpha, O III and S II. Highspeed Narrowband Filter are designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASA
  • Conventional narrowband filters cause a heavy loss in transmission due to the strong CWL-shift. In extreme cases the CWL even does shift out of the FWHM (CWL= Center-wavelength / FWHM= full width half maximum). Therefore these filters have a CWL-preshift which matches f/2 to f/3 perfectly.
  • The FWHM is optimized. In spite of the typical line broadening with such fast optical trains they are able to deliver maximum contrast.
  • For the first time these filters allow to use fast optics really effectively with high contrast emission nebulae imaging. Using these filters between f/1,8 and f/3,5 shows a dramatic improvement compared to any regular set of narrowband-filters.

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€ 445.00 Price excl. German VAT tax (19%): € 373.95

Product Questions

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What's the actual size of your 2" filters in "mm" with and without frame/ring? What step down adapter is suggested from a 52 mm to "-- mm"?
112
Question by: Waqas Ahmad on Oct 10, 2016 7:54:00 PM | 1 Answer(s)
What are the threads and pitch of your 1.25" and 2" filters?
48
Question by: Anders G. on Sep 20, 2017 12:55:00 PM | 1 Answer(s)
When will 2" filters will be in stock?
11
Question by: Jakub on Nov 10, 2018 12:25:00 AM | 2 Answer(s)
Hi, his this set suitable for a f/d more than 6.7 and an ASI1600 ?
5
Question by: Max D. on Sep 16, 2019 5:10:00 PM | 1 Answer(s)
Can I use your F/2 filters with slower telescopes, say F/6.7 without loss of performance?
0
Question by: Laszlo Sturmann on Dec 28, 2020 9:19:00 AM | 1 Answer(s)
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Maurice 44/02/2021 14/02/202107:53
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Baader f/2 Highspeed-Filterset H-alpha / OIII / SII
These filters work great in combination with my f/2.8 Takahashi Epsilon-180ED. Highly recommended.
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