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Filters

Choose from our selection of Moon Filters, Nebular Filters, and Solar Filters - from reputable brands such as Explore Scientific and Lunt Solar Systems.
  • Original price $49.99 - Original price $49.99
    Original price
    $49.99
    $49.99 - $49.99
    Current price $49.99

    Neutral Density Filter 1.25" ND 0.9

    Explore Scientific
    In stock

    Neutral Density Filter 1.25" ND 0.9 - 310245 The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as a...

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    Original price $49.99 - Original price $49.99
    Original price
    $49.99
    $49.99 - $49.99
    Current price $49.99
  • Original price $935.00 - Original price $935.00
    Original price
    $935.00
    $935.00 - $935.00
    Current price $935.00

    LUNT 50mm Compact Double-Stack Filter LS50C

    Lunt Solar Systems
    Coming soon

    LUNT 50mm Compact Double-Stack Filter LS50C NOTE: After your order is placed for this Filter, please allow for a 1-2 week lead-time for product te...

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    Original price $935.00 - Original price $935.00
    Original price
    $935.00
    $935.00 - $935.00
    Current price $935.00
    Pre-order
  • Original price $1,800.00 - Original price $1,800.00
    Original price
    $1,800.00
    $1,800.00 - $1,800.00
    Current price $1,800.00

    Lunt Double Stack Filter For 80mm & 100mm Modular Telescopes

    Lunt Solar Systems
    In stock

    Lunt Double Stack Filter For 80mm & 100mm Modular Telescopes - SFPT Estimated lead time is 2 weeks Add an internal double-stacking module to t...

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    Original price $1,800.00 - Original price $1,800.00
    Original price
    $1,800.00
    $1,800.00 - $1,800.00
    Current price $1,800.00
    Pre-order
  • Original price $14.99 - Original price $34.99
    Original price
    $14.99 - $34.99
    $14.99 - $34.99
    Current price $14.99

    Sun Catcher Variable Large Aperture Solar Filter

    Explore Scientific
    In stock

    Sun Catcher Variable Large Aperture Solar Filter - SC70/80-00 Observe Granulation Features and Sun Spots. Perfect for Eclipse Chasers! Explore Scie...

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    Original price $14.99 - Original price $34.99
    Original price
    $14.99 - $34.99
    $14.99 - $34.99
    Current price $14.99
  • Original price $1,775.00 - Original price $1,775.00
    Original price
    $1,775.00
    $1,775.00 - $1,775.00
    Current price $1,775.00

    LUNT 60mm Double Stack Filter (Front Mount)

    Lunt Solar Systems
    Coming soon

    LUNT 60mm Double Stack Filter (Front Mount) - LS60FHa LS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on ...

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    Original price $1,775.00 - Original price $1,775.00
    Original price
    $1,775.00
    $1,775.00 - $1,775.00
    Current price $1,775.00
    Pre-order
  • Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99

    Nebula Filter UHC 1.25-inch

    Explore Scientific
    In stock

    Nebula Filter UHC 1.25-inch - 310215 Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UH...

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    Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99
  • Original price $395.00 - Original price $2,000.00
    Original price
    $395.00 - $2,000.00
    $395.00 - $2,000.00
    Current price $395.00

    Lunt Blocking Filters

    Lunt Solar Systems
    In stock

    Lunt Blocking Filters - B600 - B1200 - B1800 - B3400 Blocking Filters are required on all Lunt Telescopes Lunt Solar Systems currently offers a tot...

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    Original price $395.00 - Original price $2,000.00
    Original price
    $395.00 - $2,000.00
    $395.00 - $2,000.00
    Current price $395.00
  • Original price $1,100.00 - Original price $1,650.00
    Original price
    $1,100.00 - $1,650.00
    $1,100.00 - $1,650.00
    Current price $1,100.00

    LUNT Calcium K Module

    Lunt Solar Systems
    In stock

    LUNT Calcium K Module Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two that a...

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    Original price $1,100.00 - Original price $1,650.00
    Original price
    $1,100.00 - $1,650.00
    $1,100.00 - $1,650.00
    Current price $1,100.00
  • Original price $2,990.00 - Original price $2,990.00
    Original price
    $2,990.00
    $2,990.00 - $2,990.00
    Current price $2,990.00

    Lunt DSII/LS152T – Internal Double Stack Module For LS152THA

    Lunt Solar Systems
    Out of stock

    Lunt DSII/LS152T – Internal Double Stack Module For LS152THA       Estimated lead time 1-2 Months DSII/LS152T Internal Double Stack Module Double s...

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    Original price $2,990.00 - Original price $2,990.00
    Original price
    $2,990.00
    $2,990.00 - $2,990.00
    Current price $2,990.00
    Sold out
  • Original price $6,075.00 - Original price $6,075.00
    Original price
    $6,075.00
    $6,075.00 - $6,075.00
    Current price $6,075.00

    LUNT 100mm Solar Filter LS100FHa

    Lunt Solar Systems
    Coming soon

    LUNT 100mm Solar Filter LS100FHa 100mm front-mounted minimally obstructed hydrogen-alpha filter for use on a wide range of telescopes! Connect th...

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    Original price $6,075.00 - Original price $6,075.00
    Original price
    $6,075.00
    $6,075.00 - $6,075.00
    Current price $6,075.00
    Pre-order
  • Original price $1,100.00 - Original price $1,100.00
    Original price
    $1,100.00
    $1,100.00 - $1,100.00
    Current price $1,100.00

    LUNT Front Mount 50mm Double Stack Solar Filter (Fits 60mm Telescopes)

    Lunt Solar Systems
    In stock

    LUNT Front Mount 50mm Double Stack Solar Filter (Fits 60mm Telescopes) - LS50FHa LS50FHa solar filter front-mounted non-obstructed hydrogen-alpha...

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    Original price $1,100.00 - Original price $1,100.00
    Original price
    $1,100.00
    $1,100.00 - $1,100.00
    Current price $1,100.00
  • Original price $179.99 - Original price $179.99
    Original price
    $179.99
    $179.99 - $179.99
    Current price $179.99

    Nebula Filter H-Beta 2.0-inch

    Explore Scientific
    In stock

    Nebula Filter H-Beta 2.0-inch - 310230 Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94....

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    Original price $179.99 - Original price $179.99
    Original price
    $179.99
    $179.99 - $179.99
    Current price $179.99
  • Original price $119.99 - Original price $119.99
    Original price
    $119.99
    $119.99 - $119.99
    Current price $119.99

    Nebula Filter CLS 2.0-inch

    Explore Scientific
    In stock

    Nebula Filter CLS 2.0-inch - 310220 Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% Thi...

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    Original price $119.99 - Original price $119.99
    Original price
    $119.99
    $119.99 - $119.99
    Current price $119.99
  • Original price $139.99 - Original price $139.99
    Original price
    $139.99
    $139.99 - $139.99
    Current price $139.99

    Nebula Filter UHC 2.0-inch

    Explore Scientific
    In stock

    Nebula Filter UHC 2.0-inch - 310210 Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC ...

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    Original price $139.99 - Original price $139.99
    Original price
    $139.99
    $139.99 - $139.99
    Current price $139.99
  • Original price $139.99 - Original price $139.99
    Original price
    $139.99
    $139.99 - $139.99
    Current price $139.99

    Nebula Filter Oxygen III 2.0-inch

    Explore Scientific
    In stock

    Nebula Filter Oxygen III 2.0-inch - 310200 Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission ...

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    Original price $139.99 - Original price $139.99
    Original price
    $139.99
    $139.99 - $139.99
    Current price $139.99
  • Original price $59.99 - Original price $59.99
    Original price
    $59.99
    $59.99 - $59.99
    Current price $59.99

    Neutral Density Filter 2" ND 0.9

    Explore Scientific
    In stock

    Neutral Density Filter 2" ND 0.9 - 310240 The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an e...

    View full details
    Original price $59.99 - Original price $59.99
    Original price
    $59.99
    $59.99 - $59.99
    Current price $59.99
  • Original price $129.99 - Original price $129.99
    Original price
    $129.99
    $129.99 - $129.99
    Current price $129.99

    Nebula Filter H-Beta 1.25-inch

    Explore Scientific
    In stock

    Nebula Filter H-Beta 1.25-inch - 310235 Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94...

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    Original price $129.99 - Original price $129.99
    Original price
    $129.99
    $129.99 - $129.99
    Current price $129.99
  • Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99

    Nebula Filter Oxygen III 1.25-inch

    Explore Scientific
    In stock

    Nebula Filter Oxygen III 1.25-inch - 310205 Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission...

    View full details
    Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99
  • Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99

    Nebula Filter CLS 1.25-inch

    Explore Scientific
    In stock

    Nebula Filter CLS 1.25-inch - 310225 Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% Th...

    View full details
    Original price $109.99 - Original price $109.99
    Original price
    $109.99
    $109.99 - $109.99
    Current price $109.99