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Baader f/2 Highspeed Narrowband CCD 3-Filter Set (H-a/O-III/S-II) - 1.25" # FHSS-1 2459396

5.0 (1 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 2459396
Availability available

Product Info

Manufacturer Description

Baader f/2 Highspeed Narrowband CCD Filter with preshift and LPFC (low profile filter cell): Set of three 1.25" filters - H-alpha, O-III and S-II.

Baader's new f/2 Highspeed Narrowband Filters are designed especially for the delicate requirements of extremely fast astrograph optics, such as Hyperstar, RASA, and ultra-fast instruments from TEC/AP/ASA/etc. Conventional narrowband filters cause a heavy loss in transmission due to the strong CWL-shift. In extreme cases the CWL even shifts 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. Also 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 the effective use of extremely fast optics for high contrast imaging of emission nebulae. Using these filters between f/1.8 and f/3.5 shows a dramatic improvement compared to any regular set of narrowband-filters.

Manufacturer part # FHSS-1 or 2459396


5.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by John O.
      Nov 5, 2017

      5.0 Baader F2 Narrow Band High Speed Filters




      Great filters and fast, free shipping!

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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