Product Code: 2459451

Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter

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Manufacturer Code: 2459451
4047825103550 UPC : 4047825103550
Brand:  Baader
RRP: 227.00193.00Inc VAT 20%You Save:  34.00
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The Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter offers high contrasted images to about 656.3 nm in red spectral range. The H-Alpha Filter offers sharper details of nebulae and the star appearance are diminished even stronger.

This H-alpha filter has an anti-reflective coating to avoid ghosting of the images for clear and sharper images. It is designed for fast optical system ranging from F10 - F3.5. Along with its 2 mm of thickness, this filter is planeoptically polished and has non-ageing sealed coated edges.


In general this DeepSky Ultra-Narrowband H-alpha Filter is not suitable for solar observation. The Halfbandwidth of 3.5nm equals 35 Angstroem, high-quality H-alpha solar filter from Solar-Spectrum start at 0.8 Angstroem. At favorable conditions experiments might still be possible, although at lesser quality.

  • Anti-Reflective Coating
  • 2 mm Thickness
  • Planeoptically Polished
  • Non-Ageing Sealed Coated Edges
  • Optical System Ranging From F10-F3.5

  • Specifications
  • Manufacturer: Baader Planetarium
  • Condition: New
  • Coating: Dielectrically Coated and Planeoptically Polished
  • Filter Thickness Without Cell: 2 mm
  • Size of Filter: 1.25 inch
  • Half Band Width: 35 nm
  • Central Wavelength: 656.3 nm
  • Range of Transmission: H-alpha
  • Application: CCD, Deep Sky, H-alpha
  • Filter Mounting: Mounted (LPFC 6mm)
  • Filter Type: Narrowband
  • Weight: 66 g / 0.066 kg

  • Kit Contents
  • Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter
  • User Guide
  • Case
  • Manufacturer Warranty

  • Package Information
  • Weight: 89 g / 0.089 kg

  • For more information about, Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter website.
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    Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter


    Customer Reviews on Baader 1.25" Ultra-Narrowband 3.5nm H-Alpha Filter

    This product was added to our catalog on Tuesday 16 April, 2019.