Experience the universe in a whole new light with the Baader 2″ C2 Swan-Band Filter. Specifically designed for OIII (oxygen-III) wavelengths, this high-precision filter opens a portal to the celestial world, allowing you to capture mesmerizing details of nebulae and other deep-sky wonders.

Contrast gain for comet hunters

The Baader C2 SWAN-Band-Filter with ≤ 15 nm Half-Bandwidth isolates the two C2 lines at 511 and 514nm.

These two emission lines, named Swan bands after their discoverer, dominate the spectrum of a comet’s gas tail in the visible range. The filter allows only the light from the two carbon bands to pass through and, among other things, blocks the ubiquitous stray light, similar to a nebula filter in deep-sky observation. Structures in the gas tail thus become clearer even under good observing conditions. At the same time, it completely blocks the OIII line at 501nm and below, which other Swan-Band filters allow to pass. This allows for even higher contrast, and comets with gas tails can be distinguished even better from those dominated by a dust tail (and where a SWAN filter provides only a small contrast enhancement). For ambitious comet observers, a SWAN filter is part of the basic equipment.

Just in time for the introduction of the new C2 Swan-Band filter, a bright comet, comet C/2022 E3 (ZTF), offered itself as a test object. Our customer Andreas Bringmann was one of our first testers

This image was taken from the big city and with an almost full moon. You can clearly see the amount of “doubly ionized carbon” (the carbon excited to glow radiates only in the wavelengths 511 nm and 514 nm ) emitted by the comet. The filter shows the complete extension of the ion cloud around a comet:comet C-2022E3_ZTF

C-2022E3_ZTF passes Hassaleh in Auriga (Baader C2 Swan-Band 15nm), imaged with Celestron EdgeHD 11″, Takahashi FSQ-85ED | Moravian Instruments G3-16200 MK I, ZWO ASI6200MM Pro | 10Micron GM3000 HPS & Baader C2 Swand-Bad Filter, 2″ (15nm), © A. Bringmann

 

Certainly, let’s dive deeper into the features and benefits of the Baader 2″ C2 Swan-Band Filter (15nm) designed for O III (oxygen-III) wavelengths:

Oxygen-III Brilliance:

  • The Baader C2 Swan-Band Filter is tailored to capture the unique beauty of the oxygen-III spectral line. This specific wavelength is crucial in astrophotography as it reveals intricate details within emission nebulae, such as the famous Orion Nebula and the Veil Nebula.

Ultra-Narrow 15nm Bandwidth:

  • One of the standout features of this filter is its ultra-narrow 15nm bandwidth. This precision allows the filter to isolate and transmit only the oxygen-III wavelength while blocking out other unwanted light. As a result, your astrophotographs showcase incredible contrast and reveal the subtlest details of celestial objects.

Premium Optical Quality:

  • Baader is renowned for its commitment to optical excellence, and this filter is no exception. It is crafted with top-quality optical glass and incorporates advanced multi-coatings. These coatings ensure that light transmission remains exceptionally high, minimizing light scatter and preserving image integrity.

Reduced Light Pollution:

  • Light pollution can be a significant challenge for astrophotographers, obscuring the night sky’s beauty. The Baader C2 Swan-Band Filter serves as a powerful ally in this battle. By selectively allowing the oxygen-III wavelength to pass through while blocking artificial and atmospheric light, it significantly enhances your ability to capture celestial scenes in urban and light-polluted areas.

Easy Integration:

  • The filter is designed to seamlessly integrate into your astrophotography setup. It fits standard 2″ telescope eyepiece holders, making it compatible with a wide range of telescopes and camera systems. This user-friendly design ensures that both amateur and experienced astrophotographers can incorporate it effortlessly into their equipment.

In summary, the Baader 2″ C2 Swan-Band Filter (15nm) is a precision instrument that enhances your astrophotography experience by targeting the oxygen-III spectral line. Its ultra-narrow bandwidth, premium optical quality, and light pollution reduction capabilities ensure that you can capture the cosmos in all its stunning glory, revealing intricate details within nebulae and other celestial wonders. Explore the universe with unparalleled clarity and precision by adding this remarkable filter to your astrophotography toolkit.

Elevate your astrophotography to new heights with the Baader 2″ C2 Swan-Band Filter. Witness the hidden beauty of nebulae and celestial wonders and add this precision filter to your toolkit today to explore the cosmos as never before!

MANUFACTURER Baader Planetarium
SKU (#) 2961860
EAN CODE 4047825054128
NET WEIGHT (KG) 0,006
TRANSMISSION RANGE ≤ 505 – 520 nm
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) ≤ 15nm
CWL (CENTRAL WAVELENGTH) 513 nm (for the C2 lines at 511 and 514nm)
AR-COATING dielectrically coated, planeoptically polished
FILTER SIZE 1 25 inch
FILTER USAGE Gas evolution of comets, O-III-parallel Imaging, Contrast Enhancement
FILTER MOUNTED Mounted (LPFC 6mm)
TYPE OF FILTER Bandpass

comet filter specification

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Baader C2 Swan-Band Filter (15nm ) OIII parallel

SKU: N/A

$129.00$259.00

✅ Fast Shipping & Tracking
✅ Stocked in Melbourne, Australia
✅ Expert Advice
✅ Lifetime Technical Support

    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    Baader C2 Swan-Band Filter (15nm ) OIII parallel

    SKU: N/A

    $129.00$259.00

    Experience the universe in a whole new light with the Baader 2″ C2 Swan-Band Filter. Specifically designed for OIII (oxygen-III) wavelengths, this high-precision filter opens a portal to the celestial world, allowing you to capture mesmerizing details of nebulae and other deep-sky wonders.

    Contrast gain for comet hunters

    The Baader C2 SWAN-Band-Filter with ≤ 15 nm Half-Bandwidth isolates the two C2 lines at 511 and 514nm.

    These two emission lines, named Swan bands after their discoverer, dominate the spectrum of a comet’s gas tail in the visible range. The filter allows only the light from the two carbon bands to pass through and, among other things, blocks the ubiquitous stray light, similar to a nebula filter in deep-sky observation. Structures in the gas tail thus become clearer even under good observing conditions. At the same time, it completely blocks the OIII line at 501nm and below, which other Swan-Band filters allow to pass. This allows for even higher contrast, and comets with gas tails can be distinguished even better from those dominated by a dust tail (and where a SWAN filter provides only a small contrast enhancement). For ambitious comet observers, a SWAN filter is part of the basic equipment.

    Just in time for the introduction of the new C2 Swan-Band filter, a bright comet, comet C/2022 E3 (ZTF), offered itself as a test object. Our customer Andreas Bringmann was one of our first testers

    This image was taken from the big city and with an almost full moon. You can clearly see the amount of “doubly ionized carbon” (the carbon excited to glow radiates only in the wavelengths 511 nm and 514 nm ) emitted by the comet. The filter shows the complete extension of the ion cloud around a comet:comet C-2022E3_ZTF

    C-2022E3_ZTF passes Hassaleh in Auriga (Baader C2 Swan-Band 15nm), imaged with Celestron EdgeHD 11″, Takahashi FSQ-85ED | Moravian Instruments G3-16200 MK I, ZWO ASI6200MM Pro | 10Micron GM3000 HPS & Baader C2 Swand-Bad Filter, 2″ (15nm), © A. Bringmann

     

    Certainly, let’s dive deeper into the features and benefits of the Baader 2″ C2 Swan-Band Filter (15nm) designed for O III (oxygen-III) wavelengths:

    Oxygen-III Brilliance:

    • The Baader C2 Swan-Band Filter is tailored to capture the unique beauty of the oxygen-III spectral line. This specific wavelength is crucial in astrophotography as it reveals intricate details within emission nebulae, such as the famous Orion Nebula and the Veil Nebula.

    Ultra-Narrow 15nm Bandwidth:

    • One of the standout features of this filter is its ultra-narrow 15nm bandwidth. This precision allows the filter to isolate and transmit only the oxygen-III wavelength while blocking out other unwanted light. As a result, your astrophotographs showcase incredible contrast and reveal the subtlest details of celestial objects.

    Premium Optical Quality:

    • Baader is renowned for its commitment to optical excellence, and this filter is no exception. It is crafted with top-quality optical glass and incorporates advanced multi-coatings. These coatings ensure that light transmission remains exceptionally high, minimizing light scatter and preserving image integrity.

    Reduced Light Pollution:

    • Light pollution can be a significant challenge for astrophotographers, obscuring the night sky’s beauty. The Baader C2 Swan-Band Filter serves as a powerful ally in this battle. By selectively allowing the oxygen-III wavelength to pass through while blocking artificial and atmospheric light, it significantly enhances your ability to capture celestial scenes in urban and light-polluted areas.

    Easy Integration:

    • The filter is designed to seamlessly integrate into your astrophotography setup. It fits standard 2″ telescope eyepiece holders, making it compatible with a wide range of telescopes and camera systems. This user-friendly design ensures that both amateur and experienced astrophotographers can incorporate it effortlessly into their equipment.

    In summary, the Baader 2″ C2 Swan-Band Filter (15nm) is a precision instrument that enhances your astrophotography experience by targeting the oxygen-III spectral line. Its ultra-narrow bandwidth, premium optical quality, and light pollution reduction capabilities ensure that you can capture the cosmos in all its stunning glory, revealing intricate details within nebulae and other celestial wonders. Explore the universe with unparalleled clarity and precision by adding this remarkable filter to your astrophotography toolkit.

    Elevate your astrophotography to new heights with the Baader 2″ C2 Swan-Band Filter. Witness the hidden beauty of nebulae and celestial wonders and add this precision filter to your toolkit today to explore the cosmos as never before!

    MANUFACTURER Baader Planetarium
    SKU (#) 2961860
    EAN CODE 4047825054128
    NET WEIGHT (KG) 0,006
    TRANSMISSION RANGE ≤ 505 – 520 nm
    FILTER THICKNESS (WITHOUT CELL) 2 mm
    HBW (HALFBANDWIDTH) ≤ 15nm
    CWL (CENTRAL WAVELENGTH) 513 nm (for the C2 lines at 511 and 514nm)
    AR-COATING dielectrically coated, planeoptically polished
    FILTER SIZE 1 25 inch
    FILTER USAGE Gas evolution of comets, O-III-parallel Imaging, Contrast Enhancement
    FILTER MOUNTED Mounted (LPFC 6mm)
    TYPE OF FILTER Bandpass

    comet filter specification

    Reviews

    There are no reviews yet.

    Be the first to review “Baader C2 Swan-Band Filter (15nm ) OIII parallel”

    Your email address will not be published. Required fields are marked *

      Need Expert Advice?

      Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

      Enquire now or call us (03) 9042 2293