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MEGA BLACK FRIDAY DEALS //POST CANADA WON'T BE USED UNTIL STRIKE IS SOLVED / Free Shipping for orders over $500* Some exceptions may apply.
MEGA BLACK FRIDAY DEALS //POST CANADA WON'T BE USED UNTIL STRIKE IS SOLVED / Free Shipping for orders over $500* Some exceptions may

Filters

An astronomical filter is a telescope accessory consisting of an optical filter used by amateur astronomers to simply improve details and contrast.
Original price $1,188.00
Original price $1,188.00 - Original price $1,188.00
Original price $1,188.00
Current price $1,128.60
$1,128.60 - $1,128.60
Current price $1,128.60

Antlia New Solar Discover 5Å CaK filter (SD-CAK5)

Antlia New Solar Discover 5Å CaK filter (SD-CAK5) The Antlia Solar Discover 5Å CaK assembly incorporates a set of light-reducing filters to reduce ...

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Original price $1,188.00
Original price $1,188.00 - Original price $1,188.00
Original price $1,188.00
Current price $1,128.60
$1,128.60 - $1,128.60
Current price $1,128.60
Save $59.40 Save $0.00
Original price $485.00
Original price $485.00 - Original price $485.00
Original price $485.00
Current price $460.75
$460.75 - $460.75
Current price $460.75

Antlia NEW Solar Discover 3nm CaK filter (SD-CAK3)

Antlia New Solar Discover 3nm CaK filter Telescope-side connection is 1.25" and 2" Camera side connection is 2" with ring clamp Transmission at 3...

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Original price $485.00
Original price $485.00 - Original price $485.00
Original price $485.00
Current price $460.75
$460.75 - $460.75
Current price $460.75
Save $24.25 Save $0.00
Original price $269.00 - Original price $269.00
Original price
$269.00
$269.00 - $269.00
Current price $269.00

Kowa TP-72FT protective filter (TP-72FT)

Kowa TP-72FT protective filter Compatiable products: The Kowa TP-72FT filter helps to protect the pure fluorite crystal objective lenses of the Ko...

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Original price $269.00 - Original price $269.00
Original price
$269.00
$269.00 - $269.00
Current price $269.00
Original price $294.00 - Original price $354.00
Original price
$294.00 - $354.00
$294.00 - $354.00
Current price $294.00

IDAS Ha & OIII Dusk to dawn (DTD) Filters

IDAS Ha & OIII Dusk to dawn (DTD) Filters A new generation filter covering multiple objects including comets, galaxies, the Milky Way, and emis...

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Original price $294.00 - Original price $354.00
Original price
$294.00 - $354.00
$294.00 - $354.00
Current price $294.00
Original price $202.00 - Original price $607.00
Original price $202.00 - Original price $607.00
Original price $202.00
$171.70 - $515.95
$171.70 - $515.95
Current price $171.70

SVBONY SV227 SHO 5nm Narrowband 2" Filters

SVBONY SHO 5nm Narrowband 2" Filters The SHO filter 5nm 2 inch is highly transparent, allowing the emission spectrum of the nebula to collect as mu...

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Original price $202.00 - Original price $607.00
Original price $202.00 - Original price $607.00
Original price $202.00
$171.70 - $515.95
$171.70 - $515.95
Current price $171.70
Save up to $91.05 Save $0.00
Original price $180.00
Original price $180.00 - Original price $180.00
Original price $180.00
Current price $100.00
$100.00 - $100.00
Current price $100.00

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

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

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Original price $180.00
Original price $180.00 - Original price $180.00
Original price $180.00
Current price $100.00
$100.00 - $100.00
Current price $100.00
Save $80.00 Save $0.00
Original price $169.00 - Original price $270.00
Original price
$169.00 - $270.00
$169.00 - $270.00
Current price $169.00

Seymour Threaded Helios Solar Glass Camera Filters

Seymour Threaded Helios Solar Glass Camera Filters  If you want to capture stunning images of the sun and its features, you need a solar filter th...

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Original price $169.00 - Original price $270.00
Original price
$169.00 - $270.00
$169.00 - $270.00
Current price $169.00
Original price $230.00 - Original price $344.00
Original price
$230.00 - $344.00
$230.00 - $344.00
Current price $230.00

Seymour Off Axis Solar Filters

Seymour Off Axis Solar Filters This premium solar filter is safe to photograph or view the sun when mounted on your telescope. It is rated ND5 so ...

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Original price $230.00 - Original price $344.00
Original price
$230.00 - $344.00
$230.00 - $344.00
Current price $230.00
Original price $270.00 - Original price $472.00
Original price
$270.00 - $472.00
$270.00 - $472.00
Current price $270.00

Meade Full Aperture Glass Solar Filter

Meade Full Aperture Glass Solar Filter  Safe for viewing the Sun visually Blocks 99.999% of the incoming light The perfect accessory to transfor...

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Original price $270.00 - Original price $472.00
Original price
$270.00 - $472.00
$270.00 - $472.00
Current price $270.00
Original price $25.00 - Original price $25.00
Original price
$25.00
$25.00 - $25.00
Current price $25.00

Shelyak High Voltage Power Connector (EL0334)

Shelyak High Voltage Power ConnectorThis connector is to be used with the high voltage power supply (ref. PF0082) and allows you to make a specific...

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Original price $25.00 - Original price $25.00
Original price
$25.00
$25.00 - $25.00
Current price $25.00
Original price $615.00 - Original price $615.00
Original price
$615.00
$615.00 - $615.00
Current price $615.00

Shelyak High Voltage Power Supply (PF0082)

Shelyak High Voltage Power Supply High voltage power supply for spectral calibration lamps. This power supply is intended for “spectral lamps” wh...

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Original price $615.00 - Original price $615.00
Original price
$615.00
$615.00 - $615.00
Current price $615.00
Original price $434.00 - Original price $611.00
Original price
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$434.00 - $611.00
Current price $434.00

Shelyak Spox Module (SE0259)

Shelyak Spox Module SPOX lets you take control of the remote calibration module for Alpy 600, LISA and LHIRES III spectrographs (and the basic, non...

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Original price $434.00 - Original price $611.00
Original price
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$434.00 - $611.00
Current price $434.00
Original price $941.00 - Original price $941.00
Original price
$941.00
$941.00 - $941.00
Current price $941.00

Shelyak Grating module for the UVEX Spectroscope

Shelyak Grating module for the UVEX SpectroscopeThe UVEX spectroscope is supplied as standard with a 600t/mm grating. You can complement this instr...

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Original price $941.00 - Original price $941.00
Original price
$941.00
$941.00 - $941.00
Current price $941.00
Original price $289.00 - Original price $289.00
Original price
$289.00
$289.00 - $289.00
Current price $289.00

Shelyak Fiber optic connector kit for UVEX (SE0238)

Shelyak Fiber optic connector kit for UVEX  Fiber optic kit to use a UVEX with an optical fiber (instead of a slot)This kit includes:– FC connector...

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Original price $289.00 - Original price $289.00
Original price
$289.00
$289.00 - $289.00
Current price $289.00
Original price $965.00 - Original price $982.00
Original price
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$965.00 - $982.00
Current price $965.00

Shelyak Grating module for the Lhires III

Shelyak Grating module for the Lhires IIIThe Lhires III was specially designed for High Resolution, but these complementary network modules enable ...

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Original price $965.00 - Original price $982.00
Original price
$965.00 - $982.00
$965.00 - $982.00
Current price $965.00
Original price $6,526.00 - Original price $6,526.00
Original price
$6,526.00
$6,526.00 - $6,526.00
Current price $6,526.00

Shelyak LISA Spectroscope (PF0021)

Shelyak LISA SpectroscopeThe LISA is the most sensitive instrument in our product range. Thanks to its internal reducer and low resolution, it is t...

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Original price $6,526.00 - Original price $6,526.00
Original price
$6,526.00
$6,526.00 - $6,526.00
Current price $6,526.00
Original price $95.00 - Original price $135.00
Original price $95.00 - Original price $135.00
Original price $95.00
$80.75 - $114.75
$80.75 - $114.75
Current price $80.75

SVBONY Color Correction Filter for Lunar and Planetary Surfaces

SVBONY Color Correction Filter for Lunar and Planetary Surfaces The color correction filter blocks unfocused light in the red part of the spectrum ...

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Original price $95.00 - Original price $135.00
Original price $95.00 - Original price $135.00
Original price $95.00
$80.75 - $114.75
$80.75 - $114.75
Current price $80.75
Save up to $20.25 Save $0.00
Original price $31.00
Original price $31.00 - Original price $31.00
Original price $31.00
Current price $28.00
$28.00 - $28.00
Current price $28.00

Meade Series 4000 1.25" ND96 Moon Filter (07531)

Meade Series 4000 1.25" ND96 Moon Filter Reduces the bright light of the moon to help reveal subtle details without overwhelming your eye Transmit...

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Original price $31.00
Original price $31.00 - Original price $31.00
Original price $31.00
Current price $28.00
$28.00 - $28.00
Current price $28.00
Save $3.00 Save $0.00
Original price $563.00
Original price $563.00 - Original price $563.00
Original price $563.00
Current price $517.00
$517.00 - $517.00
Current price $517.00

Baader OIII 4nm Ultra Narrowband – CMOS-optimized Open Box

Baader OIII 4nm Ultra Narrowband – CMOS-optimized Open Box In the Box Baader OIII filter Warranty & Manuals Baader Limited Lifetime Warr...

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Original price $563.00
Original price $563.00 - Original price $563.00
Original price $563.00
Current price $517.00
$517.00 - $517.00
Current price $517.00
Save $46.00 Save $0.00
Original price $1,080.00 - Original price $1,080.00
Original price
$1,080.00
$1,080.00 - $1,080.00
Current price $1,080.00

Coronado SolarMax II 40mm Double Stacking Etalon Filter (SME-40)

Coronado SolarMax II 40mm Double Stacking Etalon Filter This add on etalon filter reduces the normal bandwidth of a PST, SolarMax 40 telescope, or...

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Original price $1,080.00 - Original price $1,080.00
Original price
$1,080.00
$1,080.00 - $1,080.00
Current price $1,080.00
Original price $3,107.00 - Original price $3,107.00
Original price
$3,107.00
$3,107.00 - $3,107.00
Current price $3,107.00

Lunt Internal Double Stack Module for LS100THa (DSII/LS100THa)

Lunt Internal Double Stack Module for LS100THa When you Double stack your solar telescope, you experience a truly enhanced, high definition view of...

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Original price $3,107.00 - Original price $3,107.00
Original price
$3,107.00
$3,107.00 - $3,107.00
Current price $3,107.00
Original price $135.00 - Original price $135.00
Original price
$135.00
$135.00 - $135.00
Current price $135.00

Orion SkyGlow 1.25" Filter (05559)

Orion SkyGlow 1.25" Filter  Specialized astrophotography filter designed for deep-sky imaging in light polluted skies with CCD or DSLR cameras The...

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Original price $135.00 - Original price $135.00
Original price
$135.00
$135.00 - $135.00
Current price $135.00
Original price $88.00
Original price $88.00 - Original price $88.00
Original price $88.00
Current price $79.00
$79.00 - $79.00
Current price $79.00

Meade Series 4000 1.25" Variable Polarizing Filter (07286)

Meade Series 4000 1.25" Variable Polarizing Filter Variable Polarizing Filter Allows the user to easily decrease the image brightness for more com...

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Original price $88.00
Original price $88.00 - Original price $88.00
Original price $88.00
Current price $79.00
$79.00 - $79.00
Current price $79.00
Save $9.00 Save $0.00
Original price $525.00 - Original price $525.00
Original price
$525.00
$525.00 - $525.00
Current price $525.00

Baader 4nm O-III filter CMOS-optimized - OPEN BOX (BAA-FCOIIIMSU-2 - OPEN)

Baader 4nm O-III filter CMOS-optimized (OPEN BOX)     Baader has released a whitepaper guiding you how to select the best filter for your telesco...

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Original price $525.00 - Original price $525.00
Original price
$525.00
$525.00 - $525.00
Current price $525.00
Original price $4,883.00 - Original price $4,883.00
Original price
$4,883.00
$4,883.00 - $4,883.00
Current price $4,883.00

Lunt Double Stack Filter for LS130MT & LS152THa Telescopes

Lunt Double Stack Filter for LS130MT & LS152THa Telescopes Double stacking provides a truly enhanced, high definition view of the Sun’s surface...

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Original price $4,883.00 - Original price $4,883.00
Original price
$4,883.00
$4,883.00 - $4,883.00
Current price $4,883.00
Original price $57.00 - Original price $226.00
Original price
$57.00 - $226.00
$57.00 - $226.00
Current price $57.00

Astronomik MC-clear Filter

Astronomik MC-clear Filter This Multicoated (MC) glass serves as dust protector or to keep your system parfocal with other Astronomik filters.  Thi...

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Original price $57.00 - Original price $226.00
Original price
$57.00 - $226.00
$57.00 - $226.00
Current price $57.00
Original price $69.00 - Original price $314.00
Original price
$69.00 - $314.00
$69.00 - $314.00
Current price $69.00

Astronomik ProPlanet 807 IR-pass filter

  Astronomik ProPlanet 807 IR-pass filter Ideal addition to the Astronomik ProPlanet IR 742 for imaging the moon and planets, with telescopes large...

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Original price $69.00 - Original price $314.00
Original price
$69.00 - $314.00
$69.00 - $314.00
Current price $69.00
Original price $339.00 - Original price $881.00
Original price
$339.00 - $881.00
$339.00 - $881.00
Current price $339.00

Astronomik SII 6nm CCD MaxFR

Astronomik SII 6nm CCD MaxFR There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA the Epsil...

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Original price $339.00 - Original price $881.00
Original price
$339.00 - $881.00
$339.00 - $881.00
Current price $339.00
Original price $213.00 - Original price $566.00
Original price
$213.00 - $566.00
$213.00 - $566.00
Current price $213.00

Astronomik SII 12nm CCD MaxFR Filter

Astronomik SII 12nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA t...

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Original price $213.00 - Original price $566.00
Original price
$213.00 - $566.00
$213.00 - $566.00
Current price $213.00
Original price $175.00
Original price $163.00 - Original price $427.00
Original price $175.00
$163.00 - $427.00
$163.00 - $427.00
Current price $163.00

Astronomik SII 12nm CCD Filter

Astronomik SII 12nm CCD Filter This SII Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark sit...

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Original price $175.00
Original price $163.00 - Original price $427.00
Original price $175.00
$163.00 - $427.00
$163.00 - $427.00
Current price $163.00
Save up to $10.00 Save $0.00
Original price $339.00 - Original price $881.00
Original price
$339.00 - $881.00
$339.00 - $881.00
Current price $339.00

Astronomik H-alpha 6nm CCD MaxFR Filter

Astronomik H-alpha 6nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RAS...

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Original price $339.00 - Original price $881.00
Original price
$339.00 - $881.00
$339.00 - $881.00
Current price $339.00
Original price $251.00 - Original price $667.00
Original price
$251.00 - $667.00
$251.00 - $667.00
Current price $251.00

Astronomik H-alpha 6nm CCD Filter

Astronomik H-alpha 6nm CCD Filter   This H-alpha Filter is suitable for imaging of Hydrogen nebulas from observation sites with light pollution and...

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Original price $251.00 - Original price $667.00
Original price
$251.00 - $667.00
$251.00 - $667.00
Current price $251.00
Original price $209.24 - Original price $566.00
Original price
$209.24 - $566.00
$209.24 - $566.00
Current price $209.24

Astronomik H-alpha 12nm CCD MaxFR Filter

Astronomik H-alpha 12nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RA...

View full details
Original price $209.24 - Original price $566.00
Original price
$209.24 - $566.00
$209.24 - $566.00
Current price $209.24
Original price $163.00 - Original price $427.00
Original price
$163.00 - $427.00
$163.00 - $427.00
Current price $163.00

Astronomik H-alpha 12nm CCD Filter

Astronomik H-alpha 12nm CCD Filter The Astronomik H-alpha filter is a narrow band filter for CCD photography. The filter lets the H-alpha light of ...

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Original price $163.00 - Original price $427.00
Original price
$163.00 - $427.00
$163.00 - $427.00
Current price $163.00
Original price $74.00 - Original price $377.00
Original price
$74.00 - $377.00
$74.00 - $377.00
Current price $74.00

Astronomik L-2 UV-IR Blocking Filter

Astronomik L-2 UV-IR Blocking Filter Astronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectr...

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Original price $74.00 - Original price $377.00
Original price
$74.00 - $377.00
$74.00 - $377.00
Current price $74.00
Original price $95.00 - Original price $377.00
Original price
$95.00 - $377.00
$95.00 - $377.00
Current price $95.00

Astronomik UHC-E Filter

Astronomik UHC-E Filter The Astronomik UHC-E filter is our budget filter for deep-sky observation of emission nebulae and comets under light pollut...

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Original price $95.00 - Original price $377.00
Original price
$95.00 - $377.00
$95.00 - $377.00
Current price $95.00
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