Baader 1¼inch f/2 High- speed- Filter S II with LPFC-mounted are made specifically for the sensitive requirements of exceptionally fast astrograph optics, such as Hyperstar and RASA. Because of the strong center wavelength shift, an ordinary narrowband filters generate a heavy loss in transmission. Despite the typical line broadening with such fast optical trains, this filter is still able to produce peak contrast. This filter permits the effective use of tremendously fast optics for maximum contrast imaging of emission nebulae for the first time.
By using this Baader filter when imaging between f/1.8 and f/3.5 shows a major improvement as compare to any regular set of narrowband filters. Baader’s Anti-reflective coating technology, ¼ Wave fineoptical polish, Ionbeam hardened coatings and fully sealed coating edges for long life, and low-profile cells. The Baader highspeed narrowband filters have a CWL preshift which matches f/2 to to f/3.5 and the FWHM is also optimized.
Features: Baader 1.25inch f/2 High speed-Filter S II with LPFC-mounted
- Baader 1.25" f/2 Highspeed S II Filter
- Permits the effective use of tremendously fast optics
- Having high contrast imaging of emission nebulae for the first time
- Highspeed Narrowband Filter, 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. 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.
Specification: Baader 1.25inch f/2 High-speed-Filter S II with LPFC-mounted
- Manufacturer; Baader
- Type of Filter; Sulfur II
- Filter Usage; Imaging
- Single or Set?; Single Filter
- Filter Size;1.25"
- Filter Shape; Round
- Filter Mounted?; Mounted
Kit contents
Baader 1.25inch f/2 Highspeed-Filter S II with LPFC-mounted
Manufacturer's Warranty
Instruction / User Manual
For more information about, Baader 1.25" F2 S-II High-speed Filter website.
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