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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

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Light Pollution Filters

Original price $198.00 - Original price $198.00
Original price
$198.00
$198.00 - $198.00
Current price $198.00

Antlia Quad Band Light Pollution Filter - 2"

ANT-QUAD-2
3 in stock

The Antlia Quad Band Anti-Light Pollution Filter is a light suppression filter for color and monochrome cameras. It is able to shoot most deep sky...

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Original price $198.00 - Original price $198.00
Original price
$198.00
$198.00 - $198.00
Current price $198.00
Original price $108.00 - Original price $172.00
Original price
$108.00 - $172.00
$108.00 - $172.00
Current price $108.00

Baader Contrast-Booster Filter

Options available
3 variants in stock

For Solar Observation use only in combination with Baader AstroSolar Safety Film! Eliminates the color error of economy refractors. Clearly puts th...

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Original price $108.00 - Original price $172.00
Original price
$108.00 - $172.00
$108.00 - $172.00
Current price $108.00
Original price $108.00 - Original price $178.00
Original price
$108.00 - $178.00
$108.00 - $178.00
Current price $108.00

Baader Moon & Skyglow Filter

Options available
3 variants in stock

Selective contrast filter, for all reflector and refractor telescopes Filters out specific wavelengths, especially those caused by streetlight and...

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Original price $108.00 - Original price $178.00
Original price
$108.00 - $178.00
$108.00 - $178.00
Current price $108.00
Original price $125.00 - Original price $334.00
Original price
$125.00 - $334.00
$125.00 - $334.00
Current price $125.00

Baader UHC-S/L-Booster Filter - CMOS-Optimized

Options available
4 variants in stock

The Baader Planetarium UHC-S Nebula filter excels at delivering a high-contrast and natural view of emission nebula - without excessive dimming and...

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Original price $125.00 - Original price $334.00
Original price
$125.00 - $334.00
$125.00 - $334.00
Current price $125.00
Original price $109.00 - Original price $189.00
Original price
$109.00 - $189.00
$109.00 - $189.00
Current price $109.00

Baader Visual OIII Nebula Filter

Options available

Delivers the absolute highest contrast views of many diffuse and planetary nebula. For many objects, the Baader O-III reveals a level of intricate ...

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Original price $109.00 - Original price $189.00
Original price
$109.00 - $189.00
$109.00 - $189.00
Current price $109.00
Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00

Celestron Oxygen III Narrowband Filter - 1.25 in

CEL-93623

FeaturesThe 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission...

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Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00
Original price $125.00 - Original price $125.00
Original price
$125.00
$125.00 - $125.00
Current price $125.00

Celestron Oxygen III Narrowband Filter - 2 in

CEL-93624

Features The 2" OIII narrowband filter isolates the two doubly-ionized oxygen lines (496 and 501 nm lines) Filter has ultra-hard, vacuum-deposited ...

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Original price $125.00 - Original price $125.00
Original price
$125.00
$125.00 - $125.00
Current price $125.00
Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00

Celestron UHC/LPR Filter - 1.25"

CEL-94123

FeaturesOur 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, spe...

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Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00
Original price $125.00 - Original price $125.00
Original price
$125.00
$125.00 - $125.00
Current price $125.00

Celestron UHC/LPR Filter - 2"

CEL-94124

FeaturesOur 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifi...

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Original price $125.00 - Original price $125.00
Original price
$125.00
$125.00 - $125.00
Current price $125.00
Original price $275.00 - Original price $550.00
Original price
$275.00 - $550.00
$275.00 - $550.00
Current price $275.00

Chroma LoGlow Filter

Options available

Blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from ...

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Original price $275.00 - Original price $550.00
Original price
$275.00 - $550.00
$275.00 - $550.00
Current price $275.00
Original price $109.99 - Original price $119.99
Original price
$109.99 - $119.99
$109.99 - $119.99
Current price $109.99

Explore Scientific Nebula Filter CLS - 1.25"

Options available

Explore Scientific Nebula Filter CLS - 1.25"

Original price $109.99 - Original price $119.99
Original price
$109.99 - $119.99
$109.99 - $119.99
Current price $109.99
Original price $119.99 - Original price $119.99
Original price
$119.99
$119.99 - $119.99
Current price $119.99

Explore Scientific Nebula Filter CLS - 2.0"

ES-310220

Explore Scientific Nebula Filter CLS - 2.0"

Original price $119.99 - Original price $119.99
Original price
$119.99
$119.99 - $119.99
Current price $119.99
Original price $129.99 - Original price $129.99
Original price
$129.99
$129.99 - $129.99
Current price $129.99

Explore Scientific Nebula Filter H-Beta - 1.25"

ES-310235

Explore Scientific Nebula Filter H-Beta - 1.25"

Original price $129.99 - Original price $129.99
Original price
$129.99
$129.99 - $129.99
Current price $129.99
Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99

Explore Scientific Nebula Filter H-Beta - 2.0"

ES-310230

Explore Scientific Nebula Filter H-Beta - 2.0"

Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99
Original price $109.99 - Original price $109.99
Original price
$109.99
$109.99 - $109.99
Current price $109.99

Explore Scientific Nebula Filter Oxygen III - 1.25"

ES-310205

Explore Scientific Nebula Filter Oxygen III - 1.25"

Original price $109.99 - Original price $109.99
Original price
$109.99
$109.99 - $109.99
Current price $109.99
Original price $139.99 - Original price $139.99
Original price
$139.99
$139.99 - $139.99
Current price $139.99

Explore Scientific Nebula Filter Oxygen III - 2.0"

ES-310200

Explore Scientific Nebula Filter Oxygen III - 2.0"

Original price $139.99 - Original price $139.99
Original price
$139.99
$139.99 - $139.99
Current price $139.99
Original price $109.99 - Original price $109.99
Original price
$109.99
$109.99 - $109.99
Current price $109.99

Explore Scientific Nebula Filter UHC - 1.25"

ES-310215

Explore Scientific Nebula Filter UHC - 1.25"

Original price $109.99 - Original price $109.99
Original price
$109.99
$109.99 - $109.99
Current price $109.99
Original price $139.99 - Original price $139.99
Original price
$139.99
$139.99 - $139.99
Current price $139.99

Explore Scientific Nebula Filter UHC - 2.0"

ES-310210

Explore Scientific Nebula Filter UHC - 2.0"

Original price $139.99 - Original price $139.99
Original price
$139.99
$139.99 - $139.99
Current price $139.99
Original price $149.00 - Original price $269.00
Original price
$149.00 - $269.00
$149.00 - $269.00
Current price $149.00

Optolong L-Pro Filter

Options available
12 variants in stock

Ligh pollution reduction filter Keeps natural color balance to your images Effective for use in ...

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Original price $149.00 - Original price $269.00
Original price
$149.00 - $269.00
$149.00 - $269.00
Current price $149.00
Original price $399.00 - Original price $399.00
Original price
$399.00
$399.00 - $399.00
Current price $399.00

Optolong L-Quad Enhance + L-Para L1 Dual-Combo Filter Set - 2"

OPT-L1-SET
1 in stock

Includes 1x L-Quad Enhance Filter and 1x L-Para

Original price $399.00 - Original price $399.00
Original price
$399.00
$399.00 - $399.00
Current price $399.00
Original price $55.00 - Original price $115.00
Original price
$55.00 - $115.00
$55.00 - $115.00
Current price $55.00

Optolong UHC Filter

Options available
1 variants in stock

Optolong UHC with narrower passband provides higher contrast. Thus it is more suitable for urban environment where you suffer from severe light pol...

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Original price $55.00 - Original price $115.00
Original price
$55.00 - $115.00
$55.00 - $115.00
Current price $55.00
Original price $198.00 - Original price $198.00
Original price
$198.00
$198.00 - $198.00
Current price $198.00

William Optics STC Ultra Layer Astro Multispectra Filter - 48mm

WO-YF-STC-M48

Multi-bandpass filter for astrophotography 48mm thread-on design for easy attachment Description The William Optics STC Ultra ...

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Original price $198.00 - Original price $198.00
Original price
$198.00
$198.00 - $198.00
Current price $198.00