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" 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.
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.
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 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.
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 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" 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.
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.
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.
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" 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.
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.
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 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 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.
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.
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2 Inch Telescope Filters

For astronomy enthusiasts and seasoned stargazers alike, 2 inch telescope filters are indispensable tools for elevating the celestial viewing experience. These larger-format filters are designed to fit seamlessly onto 2 inch eyepieces and accessories, a standard size favored by many intermediate and advanced telescopes, including several models available in the Adorama telescopes lineup. Whether you're exploring the subtle bands of Jupiter, tracing the delicate tendrils of a nebula, or seeking to tease out faint galaxies from the summer sky, the right filter can make all the difference. As August brings warmer nights and clearer skies, dedicated astronomers often find themselves spending more time outdoors, making now an ideal season to consider expanding your filter collection. The increased darkness and stability of late-summer evenings provide perfect conditions to appreciate the contrast and detail enhancements that quality 2 inch filters deliver.

Selecting the right 2 inch telescope filter involves a blend of technical understanding and personal preference. These filters come in various types, each tailored to specific observing goals. Light pollution filters help urban astronomers reclaim the night sky, cutting through the haze of city lights to reveal hidden wonders. Color filters, often used for planetary observation, can accentuate surface details on Mars or increase contrast in Saturn’s rings. Narrowband and broadband filters are popular among deep-sky observers, allowing for crisp views of emission nebulae or improving the visibility of faint objects against the background sky. The robust construction of 2 inch filters ensures they can withstand frequent handling and the rigors of transport, making them a reliable choice for those who travel to dark-sky sites or participate in astronomy clubs. Gifting a set of 2 inch telescope filters is a thoughtful gesture for any astronomy lover, from the curious beginner ready to move beyond basic stargazing to the experienced observer looking to fine-tune their setup for upcoming meteor showers or planetary oppositions.

In addition to their practical benefits, 2 inch telescope filters invite a sense of discovery and experimentation. Many observers recall their first glimpse of the Lagoon Nebula through an O-III filter, the swirling clouds of gas suddenly leaping into view with unexpected clarity. Others find that a simple moon filter transforms a blindingly bright full moon into a landscape rich with craters and subtle shadows. The tactile satisfaction of threading a precision-made filter onto a favorite eyepiece is matched only by the anticipation of what new details might emerge during the night’s session. As you expand your astronomy toolkit, it’s also helpful to consider the broader world of optical filters, such as those designed for cameras. If you’re interested in capturing your astronomical observations, exploring options like 46mm Camera Filters can complement your telescope accessories and open up new creative possibilities. Whether for visual observation or astrophotography, the right filters help you see—and share—the universe in ever more vivid detail.