Narrow Band & UV/IR Filters

97 products

1. 

   Baader H-alpha 1¼" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-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. 

   Baader H-alpha 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-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. 

   Baader H-alpha 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-RD31]

   $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. 

   Baader H-alpha 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-RD36]

   $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. 

   Baader H-alpha 50.4mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-RD50]

   $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. 

   Baader H-alpha 50.4mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-SQ50]

   $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. 

   Baader H-alpha 65x65mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCHALHS-SQ65]

   $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. 

   Baader H-alpha 1¼" f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-1]

   $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. 

   Baader H-alpha 2" f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-2]

   $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. 

    Baader H-alpha 31mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-RD31]

    $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. 

    Baader H-alpha 36mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-RD36]

    $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. 

    Baader H-alpha 50.4mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-RD50]

    $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. 

    Baader H-alpha 50x50mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-SQ50]

    $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. 

    Baader H-alpha 65x65mm f/2 Ultra-Highspeed-Filter (3.5nm) – CMOS-optimized [BA-FCHALHSU-SQ65]

    $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. 

    Baader H-alpha 1¼" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-1]

    $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. 

    Baader H-alpha 2" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-2]

    $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. 

    Baader H-alpha 31mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-RD31]

    $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. 

    Baader H-alpha 36mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-RD36]

    $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. 

    Baader H-alpha 50.4mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-RD50]

    $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. 

    Baader H-alpha 50x50mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-SQ50]

    $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. 

    Baader H-alpha 65x65mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCHALN-SQ65]

    $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. 

    Baader H-alpha 1¼" Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-1]

    $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. 

    Baader H-alpha 2" Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-2]

    $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. 

    Baader H-alpha 31mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-RD31]

    $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. 

    Baader H-alpha 36mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-RD36]

    $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. 

    Baader H-alpha 50.4mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-RD50]

    $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. 

    Baader H-alpha 50x50mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-SQ50]

    $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. 

    Baader H-alpha 65x65mm Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized [BA-FCHALNU-SQ65]

    $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. 

    Baader H-beta 1¼" Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-1]

    $225.51 USD

    Baader: Baader H-Beta 1¼" Narrowband-Filter (5.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader H-Beta Narrowband Filter – Precision Grade – with 1¼" (28,5 mm) filter thread
    • 5.5 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 2961080

    Out of Stock
30. 

    Baader H-beta 2" Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-2]

    $358.38 USD

    Baader: Baader H-Beta 2" Narrowband-Filter (5.5nm) – CMOS-optimized

    • 2" x 2 mm Baader H-Beta Narrowband Filter – Precision Grade – with 2" (M48) filter thread
    • 5.5 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 2961083

    Out of Stock
31. 

    Baader H-beta 31mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD31]

    $237.87 USD

    Baader: Baader H-Beta 31mm Narrowband-Filter (5.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader H-Beta Narrowband Filter – Precision Grade
    • 5.5 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

    SKU 2961081

    Out of Stock
32. 

    Baader H-beta 36mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD36]

    $261.56 USD

    Baader: Baader H-Beta 36 mm Narrowband-Filter (5.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader H-Beta Narrowband Filter – Precision Grade
    • 5.5 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

    SKU 2961082

    Out of Stock
33. 

    Baader H-beta 50.4mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-RD50]

    $382.07 USD

    Baader: Baader H-Beta 50.4mm Narrowband-Filter (5.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader H-Beta Narrowband Filter – Precision Grade
    • 5.5 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

    SKU 2961084

    Out of Stock
34. 

    Baader H-beta 50x50mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-SQ50]

    $412.97 USD

    Baader: Baader H-Beta 50x50mm Narrowband-Filter (5.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader H-Beta Narrowband Filter – Precision Grade
    • 5.5 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

    SKU 2961085

    Out of Stock
35. 

    Baader H-beta 65x65mm Narrowband-Filter (5.5nm) – CMOS-optimized [BA-FCHBN-SQ65]

    $515.97 USD

    Baader: Baader H-Beta 65x65mm Narrowband-Filter (5.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader H-Beta Narrowband Filter – Precision Grade
    • 5.5 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

    SKU 2961086

    Out of Stock
36. 

    Baader Ultra-Narrowband 4.5nm O-III CCD-Filter 1¼", (with LPFC) [BA-FCOIIIHS-1]

    $184.31 USD

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

    • 1¼" x 2 mm Baader O-III 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 2961225
    Out of Stock
37. 

    Baader O-III 2" f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-2]

    $297.61 USD

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

    • 2" x 2 mm Baader O-III 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 2961228

    Out of Stock
38. 

    Baader O-III 31mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-RD31]

    $192.55 USD

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

    • 31 mm x 2 mm Baader O-III 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 2961226

    Out of Stock
39. 

    Baader O-III 36mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-RD36]

    $212.12 USD

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

    • 36 mm x 2 mm Baader O-III 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 2961227

    Out of Stock
40. 

    Baader O-III 50x50mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-SQ50]

    $351.17 USD

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

    • 50 x 50 mm x 3 mm Baader O-III 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 2961230

    Out of Stock
41. 

    Baader O-III 65x65mm f/2 Highspeed-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIHS-SQ65]

    $441.81 USD

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

    • 65 x 65 mm x 3 mm Baader O-III 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 2961231

    Out of Stock
42. 

    Baader O-III 1¼" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-1]

    $307.91 USD

    Baader: Baader O-III 1¼" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 1¼" x 2 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade – with 1¼" (28,5 mm) filter thread
    • 4 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
    • 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 2961450

    Out of Stock
43. 

    Baader O-III 2" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-2]

    $428.42 USD

    Baader: Baader O-III 2" f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 2" x 2 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade – with 2" (M48) filter thread
    • 4 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
    • 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 2961453

    Out of Stock
44. 

    Baader O-III 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD31]

    $328.51 USD

    Baader: BBaader O-III 31mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 31 mm x 2 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade
    • 4 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
    • 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 2961451

    Out of Stock
45. 

    Baader O-III 36mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD36]

    $380.01 USD

    Baader: Baader O-III 36mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 36 mm x 2 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade
    • 4 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
    • 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 2961452

    Out of Stock
46. 

    Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-RD50]

    $462.41 USD

    Baader: Baader O-III 50.4mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade
    • 4 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
    • 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 2961454

    Out of Stock
47. 

    Baader O-III 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-SQ50]

    $474.77 USD

    Baader: Baader O-III 50x50mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade
    • 4 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
    • 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 2961455

    Out of Stock
48. 

    Baader O-III 65x65mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized [BA-FCOIIIHSU-SQ65]

    $616.91 USD

    Baader: Baader O-III 65x65mm f/2 Ultra-Highspeed-Filter (4nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader O-III f/2 Ultra-Highspeed Filter – Premium Grade
    • 4 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
    • 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 2961456

    Out of Stock
49. 

    Baader O-III 1¼" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-1]

    $165.77 USD

    Baader: Baader O-III 1¼" Narrowband-Filter (6.5nm) – CMOS-optimized

    • 1¼" x 2 mm Baader O-III 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 2961175

    Out of Stock
50. 

    Baader O-III 2" Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-2]

    $279.07 USD

    Baader: Baader O-III 2" Narrowband-Filter (6.5nm) – CMOS-optimized

    • 2" x 2 mm Baader O-III 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

    SKU 2961178

    Out of Stock
51. 

    Baader O-III 31mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-RD31]

    $174.01 USD

    Baader: Baader O-III 31mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 31 mm x 2 mm Baader O-III 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

    SKU 2961176

    Out of Stock
52. 

    Baader O-III 36mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-RD36]

    $199.76 USD

    Baader: Baader O-III 36mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 36 mm x 2 mm Baader O-III 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

    SKU 2961177

    Out of Stock
53. 

    Baader O-III 50.4mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-RD50]

    $333.66 USD

    Baader: Baader O-III 50.4mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader O-III 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

    SKU 2961179

     
    Out of Stock
54. 

    Baader O-III 50x50mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-SQ50]

    $351.17 USD

    Baader: Baader O-III 50x50mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 50 x 50 mm x 3 mm Baader O-III 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

    SKU 2961180

     
    Out of Stock
55. 

    Baader O-III 65x65mm Narrowband-Filter (6.5nm) – CMOS-optimized [BA-FCOIIIN-SQ65]

    $433.57 USD

    Baader: Baader O-III 65x65mm Narrowband-Filter (6.5nm) – CMOS-optimized

    • 65 x 65 mm x 3 mm Baader O-III 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

    SKU 2961181

     
    Out of Stock
56. 

    Baader O-III 1¼" Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCOIIINU-1]

    $295.55 USD

    Baader: Baader O-III 1¼" Ultra-Narrowband-Filter (4nm) – CMOS-optimized

    • 1¼" x 2 mm Baader O-III Ultra-Narrowband Filter – Premium Grade – with 1¼" (28,5 mm) filter thread
    • 4 nm FWHM, 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

    SKU 2961400

    Out of Stock
57. 

    Baader O-III 2" Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCOIIINU-2]

    $431.51 USD

    Baader: Baader O-III 2" Ultra-Narrowband-Filter (4nm) – CMOS-optimized

    • 2" x 2 mm Baader O-III Ultra-Narrowband Filter – Premium Grade – with 2" (M48) filter thread
    • 4 nm FWHM, 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

    SKU 2961403

    Out of Stock
58. 

    Baader O-III 31mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCOIIINU-RD31]

    $318.21 USD

    Baader: Baader O-III 31mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized

    • 31 mm x 2 mm Baader O-III Ultra-Narrowband Filter – Premium Grade
    • 4 nm FWHM, 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

    SKU 2961401

    Out of Stock
59. 

    Baader O-III 36mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCOIIINU-RD36]

    $382.07 USD

    Baader: Baader O-III 36mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized

    • 36 mm x 2 mm Baader O-III Ultra-Narrowband Filter – Premium Grade
    • 4 nm FWHM, 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

    SKU 2961402

    Out of Stock
60. 

    Baader O-III 50.4mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized [BA-FCOIIINU-RD50]

    $469.62 USD

    Baader: Baader O-III 50.4mm Ultra-Narrowband-Filter (4nm) – CMOS-optimized

    • 50.4 mm x 3 mm Baader O-III Ultra-Narrowband Filter – Premium Grade
    • 4 nm FWHM, 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

    SKU 2961404

     
    Out of Stock