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H-Alpha Filters

31 products

  1. $184.31 USD

    Baader: Baader H-alpha 1¼" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade – with 1¼" (28,5 mm) filter thread
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    SKU 2961150

    Out of Stock
  2. $299.67 USD

    Baader: Baader H-alpha 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 2" x 2 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade – with 2" (M48) filter thread
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    SKU 2961153

    Out of Stock
  3. $191.52 USD

    Baader:Baader H-alpha 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961151

     

    Out of Stock
  4. $215.21 USD

    Baader: Baader H-alpha 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961152

     

    Out of Stock
  5. $309.97 USD

    Baader: Baader H-alpha 50.4mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961154

     

    Out of Stock
  6. $361.47 USD

    Baader: Baader H-alpha 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961155

     

    Out of Stock
  7. $449.02 USD

    Baader: Baader H-alpha 65x65mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader H-alpha f/2 Highspeed Filter – Precision Grade
    • 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961156

     

    Out of Stock
  8. $335.72 USD

    Baader: Baader H-alpha 1¼" f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade – with 1¼" (28,5 mm) filter thread
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    SKU 2961375

    Out of Stock
  9. $515.97 USD

    Baader: Baader H-alpha 2" f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 2" x 2 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade – with 2" (M48) filter thread
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    SKU 2961378

    Out of Stock
  10. $347.05 USD

    Baader: Baader H-alpha 31mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961376

    Out of Stock
  11. $412.97 USD

    Baader: Baader H-alpha 36mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961377

    Out of Stock
  12. $567.47 USD

    Baader: Baader H-alpha 50.4mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961379

    Out of Stock
  13. $639.57 USD

    Baader: Baader H-alpha 50x50mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961380

    Out of Stock
  14. $804.37 USD

    Baader: Baader H-alpha 65x65mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8
    • Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    SKU 2961381

    Out of Stock
  15. $174.01 USD

    Baader: Baader H-alpha 1¼" Narrowband-Filter (6.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader H-alpha Narrowband Filter – Precision Grade – with 1¼" (28,5 mm) filter thread
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    SKU 2961100
     

    Out of Stock
  16. $289.37 USD

    Baader: Baader H-alpha 2" Narrowband-Filter (6.5nm) – CMOS-optimized

    • 2" x 2 mm Baader H-alpha Narrowband Filter – Precision Grade – with 2" (M48) filter thread
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!

    SKU 2961103

    Out of Stock
  17. $179.16 USD

    Baader: Baader H-alpha 31mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader H-alpha Narrowband Filter – Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961101

    Out of Stock
  18. $202.85 USD

    Baader: Baader H-alpha 36mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader H-alpha Narrowband Filter – Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961102

    Out of Stock
  19. $299.67 USD

    Baader: Baader H-alpha 50.4mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader H-alpha Narrowband Filter – Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961104

    Out of Stock
  20. $349.11 USD

    Baader: Baader H-alpha 50x50mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader H-alpha Narrowband Filter – Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961105

    Out of Stock
  21. $443.87 USD

    Baader: Baader H-alpha 65x65mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader H-alpha Narrowband Filter – Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961106

    Out of Stock
  22. $325.42 USD

    Baader: Baader H-alpha 1¼" Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade – with 1¼" (28,5 mm) filter thread
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies
    • Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961325

     

    Out of Stock
  23. $464.47 USD

    Baader: Baader H-alpha 2" Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 2" x 2 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade – with 2" (M48) filter thread
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    Mounted in Baader Low Profile Filter Cell (LPFC) – 6 mm height
    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961328

     

    Out of Stock
  24. $340.87 USD

    Baader: Baader H-alpha 31mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961326

     

    Out of Stock
  25. $410.91 USD

    Baader: Baader H-alpha 36mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961327

     

    Out of Stock
  26. $513.91 USD

    Baader: Baader H-alpha 50.4mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961329

     

    Out of Stock
  27. $586.01 USD

    Baader: Baader H-alpha 50x50mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961330

     

    Out of Stock
  28. $732.27 USD

    Baader: Baader H-alpha 65x65mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader H-alpha Ultra-Narrowband Filter – Premium Grade
    • 3.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for optical systems from f/10 to f/3.5
    • For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
    • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
    • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
    • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

    We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
    SKU 2961331

     

    Out of Stock
  29. $946.51 USD

    Baader has released the New CMOS-Optimized filters.

    • Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade
    • 6.5 nm FWHM, recommended for optical systems from f / 10 to f / 3.5
    • Reflex-Blocker ™ hard-coated and planoptically polished - with sealed coating edges ( Life-Coat ™ )
    • Blackened edges all around, with filter-lead-side-indicator in the form of a black front side outer rim
    • Optimized for modern CMOS cameras, but excellent for CCD camera technologies

    The new generation of Baader CMOS-optimized filters features:

    • CMOS-Optimized Baader Filter
    • Increased contrast
    • Ever more narrow pass bands
    • Reflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
    • FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
    • Identical filter thickness to existing standards, with utmost care for parfocalize
    • Blackened edges all around, with filter-lead-side-indicator in the form of a black front side outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
    • Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)
    • Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment

     

    Out of Stock
  30. $1,412.07 USD

    Baader has released the New CMOS-Optimized filtersP

    • Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade
    • 3.5 / 4 nm half width (to harmonize the exposure time of H-alpha with O-III / S-II), recommended for optical systems from f / 10 to f / 3.5
    • Enables the highest contrast even with the strongest light pollution, minimizes the size of the stars, makes the finest nebula details accessible - indispensable under Bortle 9/8/7 / (6) sky
    • Reflex-Blocker ™ hard-coated and optically polished - with sealed coating edges ( Life-Coat ™ )
    • Blackened edges all around, with a filter front indicator in the form of a black outer edge on the front
    • Optimized for modern CMOS cameras, but ideally suited for CCD camera technologies
    • The new generation of Baader CMOS-optimized filters features:
    • CMOS-Optimized Baader Filter
    • Increased contrast
    • Ever more narrow passbands
    • Reflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
    • FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
    • Identical filter thickness to existing standards, with utmost care for parfocalize
    • Blackened edges all around, with filter-lead-side-indicator in the form of a black front side outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
    • Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)
    • Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment

     

    Out of Stock
  31. $366.62 USD
    1 in stock
    Availability: usually ships within 10-14 days

    Baader: Narrowband H-Alpha Filter 7nm, 50.4 x 3mm Round (without Cell) 

    • Premium grade H-alpha full frame chip CCD-filter for fast optical systems f/10 to f/2.8
    • IR-blocked
    • NO halos, NO reflections, NO ghosting
    • non-ageing sealed coating edges
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