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EXPLORE THE SEPTEMBER 2025 ASTRONOMY CALENDAR NOW!
EXPLORE THE SEPTEMBER 2025 ASTRONOMY CALENDAR!

Nebula Filters

Enhance your deep-sky observations with Explore Scientific’s nebula filters. Designed to isolate specific emission lines, these filters improve contrast and reveal faint nebulae, even in light-polluted skies. Whether you're observing planetary nebulae or emission nebulae, our filters—available in 1.25" and 2" sizes—offer optimal transmission and clarity. Each filter is crafted to deliver exceptional performance, ensuring a rewarding stargazing experience.

Filters

  • Nebula Filter CLS 2.0-inch

    Nebula Filter CLS 2.0-inch

    Explore Scientific
    $ 123.59 - $ 123.59
    $ 123.59
    $ 123.59 - $ 123.59
    $ 123.59

    Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-pollut...

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    $ 123.59 - $ 123.59
    $ 123.59
    $ 123.59 - $ 123.59
    $ 123.59
  • Nebula Filter H-Beta 1.25-inch

    Nebula Filter H-Beta 1.25-inch

    Explore Scientific
    $ 133.89 - $ 133.89
    $ 133.89
    $ 133.89 - $ 133.89
    $ 133.89

    Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94.5% H-Beta - Hydrogen is the most abunda...

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    $ 133.89 - $ 133.89
    $ 133.89
    $ 133.89 - $ 133.89
    $ 133.89
  • Nebula Filter H-Beta 2.0-inch

    Nebula Filter H-Beta 2.0-inch

    Explore Scientific
    $ 185.39 - $ 185.39
    $ 185.39
    $ 185.39 - $ 185.39
    $ 185.39

    Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94.5% H-Beta - Hydrogen is the most abunda...

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    $ 185.39 - $ 185.39
    $ 185.39
    $ 185.39 - $ 185.39
    $ 185.39
  • Neutral Density Filter 2" ND 0.9

    Neutral Density Filter 2" ND 0.9

    Explore Scientific
    $ 61.79 - $ 61.79
    $ 61.79
    $ 61.79 - $ 61.79
    $ 61.79

    The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradi...

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    $ 61.79 - $ 61.79
    $ 61.79
    $ 61.79 - $ 61.79
    $ 61.79

  • Sun Catcher Variable Large Aperture Solar Filter

    Explore Scientific
    $ 20.59 - $ 51.49
    $ 20.59 - $ 51.49
    $ 20.59 - $ 51.49
    $ 20.59

    If you need a Sun Catcher Solar Filter for 10-inch and 12-inch Dobsonian telescopes, purchase SC14-00. Cassiopeia Observatory Review - Click Here...

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    $ 20.59 - $ 51.49
    $ 20.59 - $ 51.49
    $ 20.59 - $ 51.49
    $ 20.59
  • Nebula Filter UHC 1.25-inch

    Nebula Filter UHC 1.25-inch

    Explore Scientific
    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29

    Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast na...

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    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29
  • Nebula Filter CLS 1.25-inch

    Nebula Filter CLS 1.25-inch

    Explore Scientific
    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29

    Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-polluti...

    View full details
    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29
  • Neutral Density Filter 1.25" ND 0.9

    Neutral Density Filter 1.25" ND 0.9

    Explore Scientific
    $ 51.49 - $ 51.49
    $ 51.49
    $ 51.49 - $ 51.49
    $ 51.49

    The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradi...

    View full details
    $ 51.49 - $ 51.49
    $ 51.49
    $ 51.49 - $ 51.49
    $ 51.49
  • OPTOLONG 2" L-eXtreme Deep-Sky Light Pollution Filter

    OPTOLONG 2" L-eXtreme Deep-Sky Light Pollution Filter

    Optolong
    $ 318.27 - $ 318.27
    $ 318.27
    $ 318.27 - $ 318.27
    $ 318.27

    The L-eXtreme is a two-band filter and the ideal choice for strong suppression of light pollution. It enables astrophotos of objects with narrow-ba...

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    $ 318.27 - $ 318.27
    $ 318.27
    $ 318.27 - $ 318.27
    $ 318.27
  • Nebula Filter Oxygen III 1.25-inch 6.5nm

    Nebula Filter Oxygen III 1.25-inch 6.5nm

    Explore Scientific
    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76

    Features High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almo...

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    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76
  • Nebula Filter S-II 1.25-inch 12nm

    Nebula Filter S-II 1.25-inch 12nm

    Explore Scientific
    $ 154.49 - $ 154.49
    $ 154.49
    $ 154.49 - $ 154.49
    $ 154.49

    Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

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    $ 154.49 - $ 154.49
    $ 154.49
    $ 154.49 - $ 154.49
    $ 154.49
  • Nebula Filter S-II 1.25-inch 6.5nm

    Nebula Filter S-II 1.25-inch 6.5nm

    Explore Scientific
    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76

    Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

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    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76
  • Nebula Filter H-Alpha 1.25-inch 12nm

    Nebula Filter H-Alpha 1.25-inch 12nm

    Explore Scientific
    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76

    Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

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    $ 163.76 - $ 163.76
    $ 163.76
    $ 163.76 - $ 163.76
    $ 163.76
  • Nebula Filter H-Alpha 1.25-inch 7nm

    Nebula Filter H-Alpha 1.25-inch 7nm

    Explore Scientific
    $ 180.24 - $ 180.24
    $ 180.24
    $ 180.24 - $ 180.24
    $ 180.24

    Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

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    $ 180.24 - $ 180.24
    $ 180.24
    $ 180.24 - $ 180.24
    $ 180.24
  • Nebula Filter Oxygen III 2-inch 6.5nm

    Nebula Filter Oxygen III 2-inch 6.5nm

    Explore Scientific
    $ 257.49 - $ 257.49
    $ 257.49
    $ 257.49 - $ 257.49
    $ 257.49

    Features High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almo...

    View full details
    $ 257.49 - $ 257.49
    $ 257.49
    $ 257.49 - $ 257.49
    $ 257.49
  • Nebula Filter S-II 2-inch 12nm

    Nebula Filter S-II 2-inch 12nm

    Explore Scientific
    $ 216.29 - $ 216.29
    $ 216.29
    $ 216.29 - $ 216.29
    $ 216.29

    Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

    View full details
    $ 216.29 - $ 216.29
    $ 216.29
    $ 216.29 - $ 216.29
    $ 216.29
  • Nebula Filter S-II 2-inch 6.5nm

    Nebula Filter S-II 2-inch 6.5nm

    Explore Scientific
    $ 257.49 - $ 257.49
    $ 257.49
    $ 257.49 - $ 257.49
    $ 257.49

    Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

    View full details
    $ 257.49 - $ 257.49
    $ 257.49
    $ 257.49 - $ 257.49
    $ 257.49
  • Nebula Filter H-Alpha 2-inch 12nm

    Nebula Filter H-Alpha 2-inch 12nm

    Explore Scientific
    $ 204.96 - $ 204.96
    $ 204.96
    $ 204.96 - $ 204.96
    $ 204.96

    Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

    View full details
    $ 204.96 - $ 204.96
    $ 204.96
    $ 204.96 - $ 204.96
    $ 204.96
  • Nebula Filter H-Alpha 2-inch 7nm

    Nebula Filter H-Alpha 2-inch 7nm

    Explore Scientific
    $ 266.76 - $ 266.76
    $ 266.76
    $ 266.76 - $ 266.76
    $ 266.76

    Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

    View full details
    $ 266.76 - $ 266.76
    $ 266.76
    $ 266.76 - $ 266.76
    $ 266.76
  • AstroZap - Baader Solar Filters

    AstroZap - Baader Solar Filters

    Explore Scientific
    $ 72.92 - $ 185.40
    $ 72.92 - $ 185.40
    $ 72.92 - $ 185.40
    $ 72.92

    Features With AstroSolar™ the Sun appears in neutral white. Baader AstroSolar™ film Filter cell constructed from lightweight 18Ga. aluminum and p...

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    $ 72.92 - $ 185.40
    $ 72.92 - $ 185.40
    $ 72.92 - $ 185.40
    $ 72.92
  • OPTOLONG 1.25" L-eNhance Deep-Sky Light Pollution Filter

    OPTOLONG 1.25" L-eNhance Deep-Sky Light Pollution Filter

    Optolong
    $ 184.37 - $ 184.37
    $ 184.37
    $ 184.37 - $ 184.37
    $ 184.37

    The L-eNhance is a three-band filter and ideal for strong suppression of light pollution. It enables astrophotos of objects with narrow-band emissi...

    View full details
    $ 184.37 - $ 184.37
    $ 184.37
    $ 184.37 - $ 184.37
    $ 184.37
  • OPTOLONG 1.25" L-eXtreme Deep-Sky Light Pollution Filter

    OPTOLONG 1.25" L-eXtreme Deep-Sky Light Pollution Filter

    Optolong
    $ 246.17 - $ 246.17
    $ 246.17
    $ 246.17 - $ 246.17
    $ 246.17

    The L-eXtreme is a two-band filter and the ideal choice for strong suppression of light pollution. It enables astrophotos of objects with narrow-ba...

    View full details
    $ 246.17 - $ 246.17
    $ 246.17
    $ 246.17 - $ 246.17
    $ 246.17
  • OPTOLONG 2" L-eNhance Deep-Sky Light Pollution Filter

    OPTOLONG 2" L-eNhance Deep-Sky Light Pollution Filter

    Optolong
    $ 235.87 - $ 235.87
    $ 235.87
    $ 235.87 - $ 235.87
    $ 235.87

    The L-eNhance is a three-band filter and ideal for strong suppression of light pollution. It enables astrophotos of objects with narrow-band emissi...

    View full details
    $ 235.87 - $ 235.87
    $ 235.87
    $ 235.87 - $ 235.87
    $ 235.87
  • OPTOLONG 2" L-Pro Deep-Sky Light Pollution Filter

    OPTOLONG 2" L-Pro Deep-Sky Light Pollution Filter

    Optolong
    $ 204.97 - $ 204.97
    $ 204.97
    $ 204.97 - $ 204.97
    $ 204.97

    The L-Pro broadband filter is the ideal choice for suppressing light pollution from artificial light and enables astrophotos of broadband emission ...

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    $ 204.97 - $ 204.97
    $ 204.97
    $ 204.97 - $ 204.97
    $ 204.97
  • Nebula Filter Oxygen III 1.25-inch
    Sold out

    Nebula Filter Oxygen III 1.25-inch

    Explore Scientific
    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29

    Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission 96.7% Oxygen III - This is the highest cont...

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    $ 113.29 - $ 113.29
    $ 113.29
    $ 113.29 - $ 113.29
    $ 113.29
    Sold out
  • Nebula Filter UHC 2.0-inch
    Sold out

    Nebula Filter UHC 2.0-inch

    Explore Scientific
    $ 144.19 - $ 144.19
    $ 144.19
    $ 144.19 - $ 144.19
    $ 144.19

    Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast nar...

    View full details
    $ 144.19 - $ 144.19
    $ 144.19
    $ 144.19 - $ 144.19
    $ 144.19
    Sold out
  • Nebula Filter Oxygen III 2.0-inch
    Sold out

    Nebula Filter Oxygen III 2.0-inch

    Explore Scientific
    $ 144.19 - $ 144.19
    $ 144.19
    $ 144.19 - $ 144.19
    $ 144.19

    Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission 96.7% Oxygen III - This is the highest cont...

    View full details
    $ 144.19 - $ 144.19
    $ 144.19
    $ 144.19 - $ 144.19
    $ 144.19
    Sold out
  • AstroZap Full Aperture Glass Solar Filter
    Sold out

    AstroZap Full Aperture Glass Solar Filter

    Astrozap
    $ 99.86 - $ 268.78
    $ 99.86 - $ 268.78
    $ 99.86 - $ 268.78
    $ 99.86

    Description These are safe full aperture (sometimes referred as clear aperture) solar filters. This means that it allows the most light possible i...

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    $ 99.86 - $ 268.78
    $ 99.86 - $ 268.78
    $ 99.86 - $ 268.78
    $ 99.86
    Sold out
  • OPTOLONG 1.25" L-Pro Deep-Sky Light Pollution Filter
    Sold out

    OPTOLONG 1.25" L-Pro Deep-Sky Light Pollution Filter

    Optolong
    $ 153.47 - $ 153.47
    $ 153.47
    $ 153.47 - $ 153.47
    $ 153.47

    The L-Pro broadband filter is the ideal choice for suppressing light pollution from artificial light and enables astrophotos of broadband emission ...

    View full details
    $ 153.47 - $ 153.47
    $ 153.47
    $ 153.47 - $ 153.47
    $ 153.47
    Sold out
  • AstroZap - Baader Solar Sheets
    Sold out

    AstroZap - Baader Solar Sheets

    Explore Scientific
    $ 34.61 - $ 72.10
    $ 34.61 - $ 72.10
    $ 34.61 - $ 72.10
    $ 34.61

    Description Make your own solar filter! Visual material includes instructions to build your own filter Baader Solar Material Size Choice: 177mm x...

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    $ 34.61 - $ 72.10
    $ 34.61 - $ 72.10
    $ 34.61 - $ 72.10
    $ 34.61
    Sold out
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