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Light Pollution, CLS and Nebula Filters for Telescopes

Light pollution filters give you the ability to enhance your observations and astrophotography by minimizing the effects of artificial lights. CLS filters, also known as City Light Suppression or contrast filters, reduce unwanted light from street lamps and other urban sources while allowing the wavelengths characteristic of deep-sky objects to pass through.

By using these filters, you can observe nebulae, galaxies, and other celestial objects with greater detail and improved contrast. Nebula filters, specially designed for certain wavelengths, highlight the fine structures of planetary and diffuse nebulae, producing sharper and more striking images.

These filters are compatible with various types of telescopes and can be used for both visual observing and astrophotography. They are easy to install and can transform an observation in a light-polluted environment into a clearer and richer experience.

Choosing light pollution filters from Astronomy Plus allows you to get the most out of your equipment and explore the deep sky with better precision and enhanced visual comfort, even under partially lit skies.

Filters
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Askar Color Magic 3nm Deep-Sky Narrowband filter - Astronomy Plus Save $235.00 Save $0.00
$735.00
$735.00 - $735.00
$735.00
$500.00
$500.00 - $500.00
$500.00

Askar Color Magic 3nm Duo-Narrowband Filter (CM-3nm)

Askar

Askar Color Magic 3nm Duo-Narrowband Filter For all astrophotography enthusiasts, filters are one of the indispensable accessories to achieve perfe...

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$735.00
$735.00 - $735.00
$735.00
$500.00
$500.00 - $500.00
$500.00
Save $235.00 Save $0.00
IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII - Astronomy Plus
IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII - Astronomy Plus
$245.00 - $297.00
$245.00 - $297.00
$245.00 - $297.00
$245.00

IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII

IDAS

IDAS NB1 Nebula Booster Filter H-alpha, H-beta & OIII The IDAS NB1 Nebula Booster Filter is a triple line-pass filter (H-alpha, H-beta & OI...

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$245.00 - $297.00
$245.00 - $297.00
$245.00 - $297.00
$245.00
Chroma LoGlow Light Pollution Filter - Astronomy Plus
$385.00 - $770.00
$385.00 - $770.00
$385.00 - $770.00
$385.00

Chroma LoGlow Light Pollution Filter

Chroma

Chroma LoGlow Light Pollution Filter The Chroma LoGlow Light Pollution Filter blocks common spectral lines from lighting sources. This filter provi...

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$385.00 - $770.00
$385.00 - $770.00
$385.00 - $770.00
$385.00
Save $64.00 Save $0.00
$174.00
$174.00 - $174.00
$174.00
$110.00
$110.00 - $110.00
$110.00

Celestron 2" UHC/LPR Filter - USED (94124-U)

Celestron

Celestron 2" UHC/LPR Filter - USED In excellent condition Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the tra...

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$174.00
$174.00 - $174.00
$174.00
$110.00
$110.00 - $110.00
$110.00
Save $64.00 Save $0.00
$153.00 - $265.00
$153.00 - $265.00
$153.00 - $265.00
$153.00

Baader OIII 10nm Visual Filter

Baader Planetarium

Baader OIII 10nm Visual Filter  ultra hard and bright O-III visual contrast for 6" and larger telescopes no visual color fringing, just pure ...

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$153.00 - $265.00
$153.00 - $265.00
$153.00 - $265.00
$153.00
Astronomy Plus UV/IR Filter - USED (UVIR-U) Astronomy Plus
Astronomy Plus UV/IR Filter - USED (UVIR-U) Astronomy Plus
Save up to $13.00 Save $0.00
$28.00 - $35.00
$28.00 - $35.00
$28.00
$15.00 - $30.00
$15.00 - $30.00
$15.00

Astronomy Plus UV/IR Filter - USED (UVIR-U)

Astronomy Plus

Astronomy Plus UV/IR Filter - USED A UV/IR cut filter is a valuable addition to any astrophotography setup because modern digital sensors are sensi...

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$28.00 - $35.00
$28.00 - $35.00
$28.00
$15.00 - $30.00
$15.00 - $30.00
$15.00
Save up to $13.00 Save $0.00
Antlia NII 3nm Pro Narrowband Filter - 2" (NII-2) Antlia
$561.00 - $561.00
$561.00
$561.00 - $561.00
$561.00

Antlia NII 3nm Pro Narrowband Filter - 2" (NII-2)

Antlia

Antlia NII Pro 3nm Filter – Maximum Narrowband Performance The Antlia NII Pro 3nm filter is engineered to deliver exceptional performance in narrow...

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$561.00 - $561.00
$561.00
$561.00 - $561.00
$561.00
Antlia 8-EL UHC Pro Visual Enhancer Filter - 2'' Mounted Antlia
$169.00 - $169.00
$169.00
$169.00 - $169.00
$169.00

Antlia 8-EL UHC Pro Visual Enhancer Filter - 2'' Mounted

Antlia

Antlia 8-EL UHC Pro Visual Enhancer Filter - 2'' Mounted The Antlia 8-EL UHC Pro Visual Enhancer filter is a high--performance optical filter desig...

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$169.00 - $169.00
$169.00
$169.00 - $169.00
$169.00
$622.00 - $1,867.00
$622.00 - $1,867.00
$622.00 - $1,867.00
$622.00

Askar SHO Colour Magic 3nm Deep-sky 2" Narrowband Filters

Askar

Askar SHO Colour Magic 3nm Deep-sky Narrowband Filters  The ColourMagic 3nm Deep-sky Narrowband Filter Series is specially designed for astrophotog...

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$622.00 - $1,867.00
$622.00 - $1,867.00
$622.00 - $1,867.00
$622.00
$209.00 - $627.00
$209.00 - $627.00
$209.00 - $627.00
$209.00

iOptron SHO Narrowband Filter 1.25"

iOptron

iOptron SHO Narrowband Filter 1.25" Information for HA: iOptron H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light...

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$209.00 - $627.00
$209.00 - $627.00
$209.00 - $627.00
$209.00
$557.00 - $557.00
$557.00
$557.00 - $557.00
$557.00

Optolong L1 L-Quad & L-Para Enhence Filter Set (L1-SET)

Optolong

Optolong L1 L-Quad & L-Para Enhence Filter Set L1 Dual -Combo Set includes：one L-Quad Enhance Filter and one L-Para L-Quad Enhance Filter：Quad ...

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$557.00 - $557.00
$557.00
$557.00 - $557.00
$557.00
$137.00 - $241.00
$137.00 - $241.00
$137.00 - $241.00
$137.00

Baader H-alpha Bandpass Filter (20 nm)

Baader Planetarium

Baader H-alpha Bandpass Filter (20 nm) H-alpha filter with 20 nm FWHM (CWL 656.3 nm), thus excellently suited for visual use at night- and photo...

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$137.00 - $241.00
$137.00 - $241.00
$137.00 - $241.00
$137.00
$859.00 - $1,679.00
$859.00 - $1,679.00
$859.00 - $1,679.00
$859.00

Askar Colour Magic Ultra E1 & E2 Duo Narrowband Filter

Askar

Askar Colour Magic Ultra E1 & E2 Duo Narrowband Filter Askar newly launched ColourMagic Ultra E1 2” Duo-narrowband Filter, is a professional as...

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$859.00 - $1,679.00
$859.00 - $1,679.00
$859.00 - $1,679.00
$859.00
Antlia ALP-T Dual Band Ha & OIII + SII & OIII 3nm 2" Filter Set Antlia
Antlia ALP-T Dual Band SII & OIII 3nm 2" Filter Antlia
$1,065.00 - $1,065.00
$1,065.00
$1,065.00 - $1,065.00
$1,065.00

Antlia ALP-T Dual Band Ha & OIII + SII & OIII 3nm 2" Filter Set

Antlia

Antlia ALP-T Dual Band Ha & OIII + SII & OIII 3nm 2" Filter Set Ha&OIII 3nm The Antlia ALP-T Dualband 3nm Ha&OIII Filter is a dual ...

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$1,065.00 - $1,065.00
$1,065.00
$1,065.00 - $1,065.00
$1,065.00
IDAS LPS-P2 31mm pollution filter (LPS-P2-31) - Astronomy Plus
Save $130.00 Save $0.00
$180.00
$180.00 - $180.00
$180.00
$50.00
$50.00 - $50.00
$50.00

IDAS LPS-P2 31mm pollution filter (LPS-P2-31)

IDAS

IDAS LPS-P2 unmounted 31mm pollution filter  New, but discontinued. Description Light pollution suppression (LPS) filters are designed to suppress...

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$180.00
$180.00 - $180.00
$180.00
$50.00
$50.00 - $50.00
$50.00
Save $130.00 Save $0.00
SVBONY SV405CC Cooled Color Camera IMX294 - Astronomy Plus
SVBONY SV405CC Cooled Color Camera IMX294 - Astronomy Plus
$835.00 - $873.00
$835.00 - $873.00
$835.00 - $873.00
$835.00

SVBONY SV405CC Cooled Color Camera IMX294

Svbony

SVBONY SV405CC Cooled Color Camera for Deep Space Astrophotography IMX294 Sv405cc with UV/IR Cut filter can achieve pure color shooting effect of ...

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$835.00 - $873.00
$835.00 - $873.00
$835.00 - $873.00
$835.00
Celestron 2" Oxygen III Narrowband Filter (93624) - Astronomy Plus
Save $70.00 Save $0.00
$170.00
$170.00 - $170.00
$170.00
$100.00
$100.00 - $100.00
$100.00

Celestron 2" Oxygen III Narrowband Filter (93624)

Celestron

Celestron 2" Oxygen III Narrowband Filter The 2" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emi...

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$170.00
$170.00 - $170.00
$170.00
$100.00
$100.00 - $100.00
$100.00
Save $70.00 Save $0.00
Celestron Light Pollution Filter RASA 8" (93614) - Astronomy Plus
Celestron Light Pollution Filter RASA 8" (93614) - Astronomy Plus
$406.00 - $406.00
$406.00
$406.00 - $406.00
$406.00

Celestron Light Pollution Filter RASA 8" (93614)

Celestron

Celestron Light Pollution Filter RASA 8" Light pollution in the night sky can significantly degrade contrast in astronomical images. This is especi...

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$406.00 - $406.00
$406.00
$406.00 - $406.00
$406.00
Celestron Light Pollution Filter RASA 11" (93617) - Astronomy Plus
Celestron Light Pollution Filter RASA 11" (93617) - Astronomy Plus
$978.00 - $978.00
$978.00
$978.00 - $978.00
$978.00

Celestron Light Pollution Filter RASA 11" (93617)

Celestron

Celestron Light Pollution Filter RASA 11" Get the most out of your Celestron Rowe-Ackermann Schmidt Astrograph 11, even under light-polluted skies,...

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$978.00 - $978.00
$978.00
$978.00 - $978.00
$978.00
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