2 Inch Telescope Filters

2 inch telescope filters are essential accessories for astronomers and stargazing enthusiasts looking to enhance their viewing experience. Designed to fit a wide range of telescopes, these filters help... you explore the night sky with greater clarity and detail. Whether you're observing planets, nebulae, or distant galaxies, 2 inch telescope filters offer versatility and improved contrast for a more immersive journey through the cosmos. Discover the perfect filter to complement your setup and take your astronomical observations to new heights.
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Celestron 2" Eyepiece and Filter Accessory Kit

Celestron 2" Eyepiece and Filter Accessory Kit

SKU: CNAK2
(83)

DESCRIPTION

A versatile 2" Eyepiece and Filter Accessory Kit with 3 eyepieces, 2X Barlow lens, and colored filters.

Pros
  • Affordable
  • Great price
  • Excellent quality
  • Perfect for Celestron 8
  • Amazing view
$419.95
$70 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: celestron

DESCRIPTION

A versatile 2" Eyepiece and Filter Accessory Kit with 3 eyepieces, 2X Barlow lens, and colored filters.
Baader Planetarium Premium Six-Piece Color Filter Set, 2" Eyepiece

Baader Planetarium Premium Six-Piece Color Filter Set, 2" Eyepiece

SKU: AA2458310
(2)

DESCRIPTION

A premium six-piece color filter set for 2" eyepieces with 3 bandpass and 3 long-pass filters, featuring 7-layer multi-coating and large clear aperture.

$447.00
$75 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A premium six-piece color filter set for 2" eyepieces with 3 bandpass and 3 long-pass filters, featuring 7-layer multi-coating and large clear aperture.
Explore Scientific 2" UHC Nebula Filter

Explore Scientific 2" UHC Nebula Filter

SKU: ES310210
(1)

DESCRIPTION

A 2" UHC Nebula Filter that enhances contrast and blocks artificial lights and airglow for nebula observation.

$139.99
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A 2" UHC Nebula Filter that enhances contrast and blocks artificial lights and airglow for nebula observation.
Explore Scientific 2" O-III Nebula Filter

Explore Scientific 2" O-III Nebula Filter

SKU: ES310200
(1)

DESCRIPTION

A high-contrast 2" O-III Nebula Filter that enhances visibility of oxygen emission lines in nebulae.

$139.99
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A high-contrast 2" O-III Nebula Filter that enhances visibility of oxygen emission lines in nebulae.
Baader Planetarium UHC-S Nebula Filter 2", L-Booster

Baader Planetarium UHC-S Nebula Filter 2", L-Booster

SKU: AA2458276
(1)

DESCRIPTION

A Baader UHC-S Nebula Filter 2" enhances contrast and natural view of emission nebulae with high transmission and H-Alpha passband.

$147.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A Baader UHC-S Nebula Filter 2" enhances contrast and natural view of emission nebulae with high transmission and H-Alpha passband.
Baader Planetarium 2" Moon and Skyglow Filter

Baader Planetarium 2" Moon and Skyglow Filter

SKU: AA2458334
(1)

DESCRIPTION

A 50.8mm Moon and Skyglow filter that enhances planetary contrast, reduces light pollution, and boosts color contrasts.

$171.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 50.8mm Moon and Skyglow filter that enhances planetary contrast, reduces light pollution, and boosts color contrasts.
Baader Planetarium Fringe-Killer Filter, 2" Eyepiece

Baader Planetarium Fringe-Killer Filter, 2" Eyepiece

SKU: AA2458375

DESCRIPTION

A 50.8mm Fringe-Killer Filter by Baader Planetarium provides high transmission and minimizes blue fringing for clear images.

$155.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 50.8mm Fringe-Killer Filter by Baader Planetarium provides high transmission and minimizes blue fringing for clear images.
Baader Planetarium 4.5nm Sulfur-II Ultra-Narrowband CCD Filter, 2" Eyepiece

Baader Planetarium 4.5nm Sulfur-II Ultra-Narrowband CCD Filter, 2" Eyepiece

SKU: AAFSIINU2

DESCRIPTION

A premium 4.5nm narrowband S-II filter for fast optical systems, with anti-reflection coatings and sealed edges.

$419.00
$70 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A premium 4.5nm narrowband S-II filter for fast optical systems, with anti-reflection coatings and sealed edges.
Baader Planetarium Red 610nm Long-Pass Filter, 2" Eyepiece

Baader Planetarium Red 610nm Long-Pass Filter, 2" Eyepiece

SKU: AA2458317

DESCRIPTION

A premium 2" eyepiece red long-pass filter with 98% transmission efficiency for bright planet and cometary details.

$89.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A premium 2" eyepiece red long-pass filter with 98% transmission efficiency for bright planet and cometary details.
Explore Scientific 2" 6.5nm S-II Nebula Filter

Explore Scientific 2" 6.5nm S-II Nebula Filter

SKU: ES310120

DESCRIPTION

A 50.8mm Explore Scientific filter that blocks artificial light and enhances visibility of ionized sulfur emission lines.

$249.99
$42 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A 50.8mm Explore Scientific filter that blocks artificial light and enhances visibility of ionized sulfur emission lines.
Baader Planetarium Clear Focusing Filter 2" (Optically Polished)

Baader Planetarium Clear Focusing Filter 2" (Optically Polished)

SKU: AA2458416

DESCRIPTION

A 2" optically polished clear focusing filter for precise image focusing before adding colored filters.

$100.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 2" optically polished clear focusing filter for precise image focusing before adding colored filters.
Explore Scientific 2" Neutral Density 0.9 Filter

Explore Scientific 2" Neutral Density 0.9 Filter

SKU: ES310240

DESCRIPTION

A 50.8mm neutral density filter by Explore Scientific with Phantom Group seven-layer optical coatings for color-neutral lunar observation.

$59.99
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A 50.8mm neutral density filter by Explore Scientific with Phantom Group seven-layer optical coatings for color-neutral lunar observation.
Explore Scientific 2" Variable Polarizing Filter

Explore Scientific 2" Variable Polarizing Filter

SKU: ES310250

DESCRIPTION

A 2" Variable Polarizing Filter with a wide control range of 40% to 1% light transmission.

$169.99
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A 2" Variable Polarizing Filter with a wide control range of 40% to 1% light transmission.
Baader Planetarium 2" Polarization Filter for Herschel Wedge, Double

Baader Planetarium 2" Polarization Filter for Herschel Wedge, Double

SKU: AA2408344

DESCRIPTION

A 2" Polarization Filter for Herschel Wedge that allows for easy brightness adjustment and eyepiece switching.

$154.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 2" Polarization Filter for Herschel Wedge that allows for easy brightness adjustment and eyepiece switching.
Baader Planetarium 2" IR Pass Telescope Filter

Baader Planetarium 2" IR Pass Telescope Filter

SKU: AA2458386

DESCRIPTION

A 50.8mm Baader Planetarium IR Pass Telescope Filter enhances planetary image sharpness with high optical quality.

$175.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 50.8mm Baader Planetarium IR Pass Telescope Filter enhances planetary image sharpness with high optical quality.
Baader Planetarium 2" Neutral Density 0.6 Multicoated Filter

Baader Planetarium 2" Neutral Density 0.6 Multicoated Filter

SKU: AA2458321

DESCRIPTION

A 2" neutral density 0.6 multicoated filter that provides superior quality and is compatible with various devices.

$95.00
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A 2" neutral density 0.6 multicoated filter that provides superior quality and is compatible with various devices.
Celestron EclipSmart Solar Filter for Celestron 8" Schmidt-Cassegrain Telescopes

Celestron EclipSmart Solar Filter for Celestron 8" Schmidt-Cassegrain Telescopes

SKU: CNECSSF8
(52)

DESCRIPTION

A solar filter for Celestron 8" Schmidt-Cassegrain Telescopes that provides ultimate protection from harmful solar radiation.

Pros
  • Perfect fit
  • Great for viewing sunspots
  • Affordable
  • Outstanding performance
  • Excellent solar filter
$69.95
KEY FEATURES
  • Brand: celestron

DESCRIPTION

A solar filter for Celestron 8" Schmidt-Cassegrain Telescopes that provides ultimate protection from harmful solar radiation.
Celestron CPC Deluxe 1100 HD Computerized Telescope - with Deluxe Accessory Kit (5 Celestron Plossl Eyepieces, 1.25" Barlow Lens, 1.25" Filter Set, Accessory Carry Case)

Celestron CPC Deluxe 1100 HD Computerized Telescope - with Deluxe Accessory Kit (5 Celestron Plossl Eyepieces, 1.25" Barlow Lens, 1.25" Filter Set, Accessory Carry Case)

SKU: CNCPC11HDAK
(13)

DESCRIPTION

A powerful and portable computerized telescope with an 11" aperture, EdgeHD optics, and deluxe accessory kit.

$5099.00
$425 /mo suggested payments with 12‑month special financing. Learn how.
KEY FEATURES
  • Brand: celestron

DESCRIPTION

A powerful and portable computerized telescope with an 11" aperture, EdgeHD optics, and deluxe accessory kit.
Celestron CPC Deluxe 925 HD Computerized Telescope - with Deluxe Accessory Kit (5 Celestron Plossl Eyepieces, 1.25" Barlow Lens, 1.25" Filter Set, Accessory Carry Case

Celestron CPC Deluxe 925 HD Computerized Telescope - with Deluxe Accessory Kit (5 Celestron Plossl Eyepieces, 1.25" Barlow Lens, 1.25" Filter Set, Accessory Carry Case

SKU: CNCPC9HDAK
(13)

DESCRIPTION

A portable and versatile telescope with a 9.25" aperture, EdgeHD optics, and a deluxe accessory kit.

$4508.99
$376 /mo suggested payments with 12‑month special financing. Learn how.
KEY FEATURES
  • Brand: celestron

DESCRIPTION

A portable and versatile telescope with a 9.25" aperture, EdgeHD optics, and a deluxe accessory kit.
Explore Scientific 2" H-Beta Nebula Filter

Explore Scientific 2" H-Beta Nebula Filter

SKU: ES310230
(1)

DESCRIPTION

A 2" H-Beta Nebula Filter that blocks all wavelengths except for the hydrogen beta emission line.

$179.99
KEY FEATURES
  • Brand: explore scientific

DESCRIPTION

A 2" H-Beta Nebula Filter that blocks all wavelengths except for the hydrogen beta emission line.
Baader Planetarium 31mm Round 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter, Unmounted

Baader Planetarium 31mm Round 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter, Unmounted

SKU: AAFIIINURD31
(1)

DESCRIPTION

A premium oxygen-III CCD filter with no halos, reflections, or ghosting, suitable for fast optical systems.

$309.00
$52 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A premium oxygen-III CCD filter with no halos, reflections, or ghosting, suitable for fast optical systems.
Baader Planetarium 2" Round O-III f/2 Highspeed Filter with LPFC Mount

Baader Planetarium 2" Round O-III f/2 Highspeed Filter with LPFC Mount

SKU: AA2459398
(1)

DESCRIPTION

A highspeed narrowband filter designed for fast astrograph optics, delivering maximum contrast for high contrast emission nebulae imaging.

$329.00
$55 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A highspeed narrowband filter designed for fast astrograph optics, delivering maximum contrast for high contrast emission nebulae imaging.
Baader Planetarium 2" Round H-alpha f/2 Highspeed Filter with LPFC Mount

Baader Planetarium 2" Round H-alpha f/2 Highspeed Filter with LPFC Mount

SKU: AA2459397
(1)

DESCRIPTION

A highspeed narrowband filter designed for fast astrograph optics, delivering maximum contrast for high contrast emission nebulae imaging.

$389.00
$65 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A highspeed narrowband filter designed for fast astrograph optics, delivering maximum contrast for high contrast emission nebulae imaging.
Baader Planetarium 2" Round H-alpha Enforced-Narrowband 3.5nm Filter with LPFC Mount for f/10 to f/3.5 Optical Systems

Baader Planetarium 2" Round H-alpha Enforced-Narrowband 3.5nm Filter with LPFC Mount for f/10 to f/3.5 Optical Systems

SKU: AA2459454
(1)

DESCRIPTION

A precision-grade 2" round H-alpha filter that opens up the extremely narrow 3.5nm H-alpha world.

$537.00
$90 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: baader planetarium

DESCRIPTION

A precision-grade 2" round H-alpha filter that opens up the extremely narrow 3.5nm H-alpha world.
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2 Inch Telescope Filters

For amateur astronomers and seasoned stargazers alike, 2 inch telescope filters are essential tools that can dramatically enhance the clarity, contrast, and detail of celestial observations. As the nights grow warmer in May and the skies invite longer hours of exploration, these filters become especially valuable for those seeking to make the most of spring and summer’s astronomical events. Designed to fit larger eyepieces commonly found in advanced telescopes, 2 inch filters cater to users who demand both versatility and performance. Whether you’re captivated by the subtle color bands of Jupiter, the intricate structure of nebulae, or the delicate surface features of the Moon, the right filter can turn a routine viewing session into an unforgettable experience. These filters are meticulously engineered to isolate specific wavelengths of light, helping to reduce the impact of light pollution, enhance contrast, and reveal details that would otherwise be lost to the naked eye. Many experienced observers recall the first time they glimpsed Saturn’s rings or the ghostly glow of the Veil Nebula through a high-quality filter—moments that spark a lifelong fascination with the night sky.

Choosing the right 2 inch telescope filter involves considering your primary observing interests and local viewing conditions. For those living in or near urban areas, light pollution filters can be a game-changer, cutting through the haze of city lights to reveal deep-sky objects with greater clarity. If your passion lies in lunar and planetary observation, color filters can help bring out subtle features—like the bluish tinge of Uranus or the rusty plains of Mars—while neutral density filters tame the Moon’s brightness, allowing for comfortable, prolonged viewing. Deep-sky enthusiasts often reach for narrowband or O-III filters during the Milky Way’s high season, using them to tease out the wispy shapes of emission nebulae and supernova remnants. The robust construction of 2 inch filters makes them suitable for frequent handling and travel, whether you’re setting up in your backyard or heading out to a remote dark-sky site. They also make thoughtful gifts for astronomy enthusiasts—imagine the delight of a friend or family member unwrapping a filter that opens up new vistas in their telescope, just in time for a summer meteor shower or planetary conjunction.

Beyond their technical advantages, 2 inch telescope filters are part of a broader ecosystem of optical accessories that can elevate your imaging and viewing sessions. Astrophotographers, in particular, rely on these filters to fine-tune exposures and maximize contrast in their images, often pairing them with camera filters for even greater creative control. If you’re expanding your toolkit, you might also explore related accessories like 62mm Camera Filters, which offer additional options for both terrestrial and celestial photography. As you prepare for the upcoming season of clear, balmy nights, consider how a well-chosen 2 inch filter can transform your telescope into a window on the universe—bringing distant galaxies, star clusters, and planetary wonders into sharper, more vivid focus. With each new observation, you’ll find yourself more attuned to the subtle interplay of light and shadow that defines the cosmos, and more eager to share the beauty of the night sky with others.