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Baader f/2 Highspeed-Filter Set 2", consisting of H-α, O-III, S-II [BA-FHSS-2]

BA-FHSS-2
$984.00 USD
Availability: usually ships within 10-14 days
Baader: Baader f/2 Highspeed-Filter Set 2", consisting of H-α, O-III, S-II 
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.

About Baader f/2 Highspeed-Filter Set 2", consisting of H-α, O-III, S-II [BA-FHSS-2]

Baader: Baader f/2 Highspeed-Filter Set 2", consisting of H-α, O-III, S-II 

  • 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.
  • MANUFACTURER    Baader Planetarium
  • SKU (#)    2459400
  • WEIGHT (KG)    0.197
  • TRANSMISSION RANGE    multiple bands (see spectral image)
  • FILTER THICKNESS (WITHOUT CELL)    2 mm
  • CWL (CENTRAL WAVELENGTH)    656,3 nm;502 nm;673 nm
  • AR-COATING    dielectrically coated, planeoptically polished
  • FILTER SIZE    2"
  • VISUAL OR IMAGING?    imaging
  • FILTER USAGE    CCD, Deep Sky, f/2 Highspeed, H-alpha, O-III, S-II
  • FILTER MOUNTED    Mounted (LPFC 6mm)
  • TYPE OF FILTER    Narrowband
  • SINGLE OR SET?    Filter-Set
  • FILTER SHAPE    round


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