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Baader Planetarium 31mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set, Unmounted

SKU: AAFHSSRD31 MFR: FHSS-RD31
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Key Features

  • Capture stunning nebula details with this 31mm H-alpha filter set, perfect for deep sky astrophotography.
  • Experience superior light pollution control using narrowband filters, enhancing your imaging sessions.
  • Achieve optimal clarity with dielectrically coated filters, plane optically polished for unmatched quality.
  • This filter set's threaded compatibility ensures secure attachment to your telescope for stable imaging.
  • Designed for f/2 high-speed systems, these filters deliver exceptional performance in fast optics setups.
  • Durable material ensures these narrowband filters withstand regular use, protecting your valuable optics.
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Baader Planetarium Filter Set Specifications

  • Transmission Range

    Multiple bands

  • Filter Thickness

    2mm (without Cell)

  • Central Wavelength

    656.3nm, 502nm, 673nm

  • AR-coating

    Dielectrically coated, plane optically polished

  • Filter Size

    31mm

  • Filter Usage

    CCD, Deep Sky, f/2 High-speed, H-alpha, O-III, S-II

  • Filter Mounted

    Unmounted

  • Type of Filter

    Narrowband

  • Filter Shape

    Round

  • Weight

    0.182kg (0.40 lbs)

About Baader Planetarium Filter Set

Let your astrophotography ascend to new heights with the 31mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set, expertly crafted by Baader Planetarium. This high-quality, durable, and innovative set of three filters is specifically designed to meet the exacting demands of ultra-fast astrograph optics, such as Hyperstar and RASA systems.

Each filter in this setf the H-alpha, OIII, and SIIf is meticulously engineered to overcome the common challenges faced with conventional narrowband filters, which often suffer from significant transmission loss due to the CWL-shift. With a pre-shifted Center-wavelength (CWL) that harmonizes perfectly with f/2 to f/3 optics, these filters ensure that the full width half maximum (FWHM) is not only maintained but optimized for your imaging needs.

The result is a filter set that, despite the line broadening typically associated with fast optical trains, delivers maximum contrast and detail. This makes it an effective tool for capturing the intricate structures of emission nebulae with unparalleled clarity. When used with optics ranging from f/1.8 to f/3.5, the filters exhibit a dramatic improvement in image quality, offering a triple signal-to-noise ratio compared to standard narrowband filters at f/2.

Versatile and effective, this filter set is an essential addition for any astrophotographer looking to explore the cosmos with fast optics. Whether you're capturing the vibrant hues of a distant nebula or the subtle details of the sun's surface, the 31mm Round f/2 High-speed Narrowband Imaging H-alpha/OIII/SII Filter Set is designed to elevate your celestial photography to professional levels. Experience the universe through your lens with vivid colors and sharp contrasts, thanks to the innovative design and superior performance of these Baader Planetarium filters.

Baader Planetarium Filter Set Features

  • High-speed narrowband imaging filter set, ideal for advanced astrophotography
  • Includes three filters: H-alpha, OIII, and SII, catering to a broad range of celestial photography
  • Expertly crafted by Baader Planetarium, a renowned brand in the field of astrophotography equipment
  • Designed to work perfectly with fast optics ranging from f/1.8 to f/3.5
  • Features a pre-shifted Center-wavelength (CWL) for optimized full width half maximum (FWHM)
  • Delivers maximum contrast and detail, enhancing the quality of your celestial images

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Capture stunning nebula details with this 31mm H-alpha filter set, perfect for deep sky astrophotography.
  • Experience superior light pollution control using narrowband filters, enhancing your imaging sessions.
  • Achieve optimal clarity with dielectrically coated filters, plane optically polished for unmatched quality.
  • This filter set's threaded compatibility ensures secure attachment to your telescope for stable imaging.
  • Designed for f/2 high-speed systems, these filters deliver exceptional performance in fast optics setups.
  • Durable material ensures these narrowband filters withstand regular use, protecting your valuable optics.

What's in the box:

  • Baader Planetarium H-alpha Filter
  • Oxygen-III Nebula Filter
  • Sulfur-II Filter
  • Stackable Filter Box
  • Baader Planetarium 2 Year Limited Warranty