Skip to content

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 $304.00 - Original price $385.00
    Original price
    $304.00 - $385.00
    $304.00 - $385.00
    Current price $304.00

    Optolong L-Extreme Dual-Band Filter

    In stock

    Optolong L-Extreme Dual-Band Astronomy NarrowBand Filter The advantage of the L-eXtreme filter is that there is no transmission between the H-beta ...

    View full details
    Original price $304.00 - Original price $385.00
    Original price
    $304.00 - $385.00
    $304.00 - $385.00
    Current price $304.00
  • Original price $530.67 - Original price $530.67
    Original price
    $530.67
    $530.67 - $530.67
    Current price $530.67

    Vespera Duo-Band Filter (AC022)

    Vespera Light Pollution Filter The Vespera Dual Band Filter is a dual narrowband interference filter that will significantly improve your photo q...

    View full details
    Original price $530.67 - Original price $530.67
    Original price
    $530.67
    $530.67 - $530.67
    Current price $530.67
  • Original price $299.99 - Original price $299.99
    Original price
    $299.99
    $299.99 - $299.99
    Current price $299.99

    Baader S II 8nm CCD Narrowband-Filter 2" (FSIIN-2)

    In stock

    Baader S II 8nm CCD Narrowband-Filter 2" CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast...

    View full details
    Original price $299.99 - Original price $299.99
    Original price
    $299.99
    $299.99 - $299.99
    Current price $299.99
  • Original price $118.37 - Original price $304.57
    Original price
    $118.37 - $304.57
    $118.37 - $304.57
    Current price $118.37

    Astrozap Full Aperture Solar Filter

    Astrozap Full Aperture Solar Filter The Astrozap Full Aperture Solar Filter is offered in size from 41mm to 403mm. These are safe full aperture (so...

    View full details
    Original price $118.37 - Original price $304.57
    Original price
    $118.37 - $304.57
    $118.37 - $304.57
    Current price $118.37
  • Original price $179.48 - Original price $179.48
    Original price
    $179.48
    $179.48 - $179.48
    Current price $179.48

    Celestron 2" UHC/LPR Filter (94124)

    In stock

    Celestron 2" UHC/LPR Filter Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengt...

    View full details
    Original price $179.48 - Original price $179.48
    Original price
    $179.48
    $179.48 - $179.48
    Current price $179.48
  • Original price $192.78 - Original price $192.78
    Original price
    $192.78
    $192.78 - $192.78
    Current price $192.78

    Celestron 2" Oxygen III Narrowband Filter (93624)

    In stock

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

    View full details
    Original price $192.78 - Original price $192.78
    Original price
    $192.78
    $192.78 - $192.78
    Current price $192.78
  • Original price $53.13 - Original price $53.13
    Original price
    $53.13
    $53.13 - $53.13
    Current price $53.13

    Celestron 1.25" Variable Polarizing Filter (94107)

    In stock

    Celestron 1.25" Variable Polarizing Filter When you want to selectively reduce the brightness of celestial objects for a customized view, the Varia...

    View full details
    Original price $53.13 - Original price $53.13
    Original price
    $53.13
    $53.13 - $53.13
    Current price $53.13
  • Original price $25.20 - Original price $25.20
    Original price
    $25.20
    $25.20 - $25.20
    Current price $25.20

    Celestron 1.25" Neutral Density Moon Filter (94105)

    Celestron 1.25" Neutral Density Moon Filter The Celestron Neutral Density Moon Filter attaches to a 1.25” eyepiece to lower the amount of light ent...

    View full details
    Original price $25.20 - Original price $25.20
    Original price
    $25.20
    $25.20 - $25.20
    Current price $25.20
  • Original price $15.89 - Original price $15.89
    Original price
    $15.89
    $15.89 - $15.89
    Current price $15.89

    Celestron 1.25" Moon Filter (94119-A)

    Celestron 1.25" Moon Filter The Moon has the distinction of being the most often viewed celestial object through backyard telescopes. It is undoubt...

    View full details
    Original price $15.89 - Original price $15.89
    Original price
    $15.89
    $15.89 - $15.89
    Current price $15.89
  • Original price $198.17 - Original price $211.47
    Original price
    $198.17 - $211.47
    $198.17 - $211.47
    Current price $198.17

    Astrozap Binocular Glass Solar Filter

    Astrozap Binocular Glass Solar Filter The Astrozap Binocular Glass Solar Filter come in a pair for binoculars. The clear aperture is made with high...

    View full details
    Original price $198.17 - Original price $211.47
    Original price
    $198.17 - $211.47
    $198.17 - $211.47
    Current price $198.17
  • Original price $44.69 - Original price $103.74
    Original price
    $44.69 - $103.74
    $44.69 - $103.74
    Current price $44.69

    Astrozap Baader Solar Material

    Astrozap Baader Solar Material Make your own! Baader Solar Material Size Choice: 177mm x 177mm (7" x 7") 250mm x 250mm (10" x 10") 250mm x 500...

    View full details
    Original price $44.69 - Original price $103.74
    Original price
    $44.69 - $103.74
    $44.69 - $103.74
    Current price $44.69
  • Original price $94.16 - Original price $239.40
    Original price
    $94.16 - $239.40
    $94.16 - $239.40
    Current price $94.16

    Astrozap Baader Solar Filter

    Astrozap Baader Solar Filter With the Astrozap Baader Solar Filter, the Sun appears in neutral white. Other films and some glass filters produce a ...

    View full details
    Original price $94.16 - Original price $239.40
    Original price
    $94.16 - $239.40
    $94.16 - $239.40
    Current price $94.16
  • Original price $127.68 - Original price $183.54
    Original price
    $127.68 - $183.54
    $127.68 - $183.54
    Current price $127.68

    Baader Fringe Killer Filter

    In stock

    Baader Fringe Killer Filter Achromat owners rejoice! Baader Planetarium has taken minus violet filtration to a new level. The Fringe Killer brings ...

    View full details
    Original price $127.68 - Original price $183.54
    Original price
    $127.68 - $183.54
    $127.68 - $183.54
    Current price $127.68
  • Original price $392.35 - Original price $1,177.05
    Original price
    $392.35 - $1,177.05
    $392.35 - $1,177.05
    Current price $392.35

    Askar 5nm Color Magic SHO Narrowband 2" Filters Set

    Askar Color Magic SHO Narrowband 5nm Filters Set For all astrophotography enthusiasts, filter is one of the indispensable accessories to achieve a ...

    View full details
    Original price $392.35 - Original price $1,177.05
    Original price
    $392.35 - $1,177.05
    $392.35 - $1,177.05
    Current price $392.35
  • Original price $198.17 - Original price $993.51
    Original price
    $198.17 - $993.51
    $198.17 - $993.51
    Current price $198.17

    Askar SII / Ha / OIII Narrowband 7nm filters

    Askar SII / Ha / OIII Narrowband 7nm filters SII Filter The Askar S II 7nm filter is suitable for imaging of S II emitting nebulae or some supernov...

    View full details
    Original price $198.17 - Original price $993.51
    Original price
    $198.17 - $993.51
    $198.17 - $993.51
    Current price $198.17
  • Original price $251.37 - Original price $437.57
    Original price
    $251.37 - $437.57
    $251.37 - $437.57
    Current price $251.37

    Askar LRGB filters

    Askar LRGB Filters The Askar LRGB imaging filter set is designed for those imagers who possess a monochrome camera that use either CCD or CMOS sen...

    View full details
    Original price $251.37 - Original price $437.57
    Original price
    $251.37 - $437.57
    $251.37 - $437.57
    Current price $251.37
  • Original price $379.00 - Original price $745.00
    Original price
    $379.00 - $745.00
    $379.00 - $745.00
    Current price $379.00

    Askar Color Magic 6nm Deep-Sky Narrowband filters

    Askar Color Magic 6nm Deep-Sky Narrowband filters For all astrophotography enthusiasts, filters are one of the indispensable accessories to achiev...

    View full details
    Original price $379.00 - Original price $745.00
    Original price
    $379.00 - $745.00
    $379.00 - $745.00
    Current price $379.00
  • Original price $735.00 - Original price $735.00
    Original price
    $735.00
    $735.00 - $735.00
    Current price $735.00

    Askar Color Magic 3nm Deep-Sky Narrowband filter

    Askar Color Magic 3nm Deep-Sky Narrowband filter For all astrophotography enthusiasts, filters are one of the indispensable accessories to achieve...

    View full details
    Original price $735.00 - Original price $735.00
    Original price
    $735.00
    $735.00 - $735.00
    Current price $735.00
  • Original price $240.00 - Original price $240.00
    Original price
    $240.00
    $240.00 - $240.00
    Current price $240.00

    Antlia Triband RGB Ultra 2" Filter (RGB)

    In stock

    Antlia Triband RGB Ultra 2" Filter It is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most s...

    View full details
    Original price $240.00 - Original price $240.00
    Original price
    $240.00
    $240.00 - $240.00
    Current price $240.00
  • Original price $51.00 - Original price $51.00
    Original price
    $51.00
    $51.00 - $51.00
    Current price $51.00

    Antlia IR Pass 850nm Planetary 1.25" Filter

    In stock

    Antlia IR Pass 685nm planetary 1.25" filter The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of ...

    View full details
    Original price $51.00 - Original price $51.00
    Original price
    $51.00
    $51.00 - $51.00
    Current price $51.00
  • Original price $51.00 - Original price $51.00
    Original price
    $51.00
    $51.00 - $51.00
    Current price $51.00

    Antlia IR Pass 685nm Planetary 1.25" Filter

    In stock

    Antlia IR Pass 685nm planetary 1.25" filter The Antlia IR Pass 685nm filter is an absorptive filter that allows infrared light with wavelengths of ...

    View full details
    Original price $51.00 - Original price $51.00
    Original price
    $51.00
    $51.00 - $51.00
    Current price $51.00
  • Original price $358.00 - Original price $358.00
    Original price
    $358.00
    $358.00 - $358.00
    Current price $358.00

    Antlia CaK 3nm 393.3nm filter - 1.25'' Mounted (CAK-1.25)

    Antlia CaK 3nm 393.3nm filter The Antlia Solar Wedge prism and internal CaK solar filter are made of heat resistant double-polished substrate. Antl...

    View full details
    Original price $358.00 - Original price $358.00
    Original price
    $358.00
    $358.00 - $358.00
    Current price $358.00
  • Original price $210.00 - Original price $570.00
    Original price
    $210.00 - $570.00
    $210.00 - $570.00
    Current price $210.00

    Antlia SHO 7nm Narrowband Prime Filters 36mm (SHO-PRIME)

    Antlia SHO 7nm Prime Narrowband Pro Filters Antlia SHO Prime narrowband filter optimizes the FWHM (full width half maximum) to 7nm bandpass. The su...

    View full details
    Original price $210.00 - Original price $570.00
    Original price
    $210.00 - $570.00
    $210.00 - $570.00
    Current price $210.00
  • Original price $250.00 - Original price $1,425.00
    Original price
    $250.00 - $1,425.00
    $250.00 - $1,425.00
    Current price $250.00

    Antlia SHO 4.5nm Narrowband EDGE Filters (SHO-EDGE)

    Antlia SHO 4.5nm Narrowband EDGE Filters Antlia SHO EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The supp...

    View full details
    Original price $250.00 - Original price $1,425.00
    Original price
    $250.00 - $1,425.00
    $250.00 - $1,425.00
    Current price $250.00
  • Original price $345.00 - Original price $2,880.00
    Original price
    $345.00 - $2,880.00
    $345.00 - $2,880.00
    Current price $345.00

    Antlia SHO 3nm Narrowband PRO Filters

    In stock

    Antlia SHO 3nm Narrowband Pro Filters Antlia SHO Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwid...

    View full details
    Original price $345.00 - Original price $2,880.00
    Original price
    $345.00 - $2,880.00
    $345.00 - $2,880.00
    Current price $345.00
  • Original price $380.00 - Original price $762.00
    Original price
    $380.00 - $762.00
    $380.00 - $762.00
    Current price $380.00

    Antlia LRGB-V Filters

    In stock

    Antlia LRGB-V Filters The Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors...

    View full details
    Original price $380.00 - Original price $762.00
    Original price
    $380.00 - $762.00
    $380.00 - $762.00
    Current price $380.00
  • Original price $131.00 - Original price $131.00
    Original price
    $131.00
    $131.00 - $131.00
    Current price $131.00

    Antlia H-beta and OIII Filter 1.25″

    In stock

    Antlia H-beta and OIII Filter – 1.25″ Antlia HB-OIII filter is engineered specifically for night visual nebulae observation at a high contrast and ...

    View full details
    Original price $131.00 - Original price $131.00
    Original price
    $131.00
    $131.00 - $131.00
    Current price $131.00
  • Original price $400.00 - Original price $475.00
    Original price
    $400.00 - $475.00
    $400.00 - $475.00
    Current price $400.00

    Antlia ALP-T Dual Band 5nm Highspeed Filter

    In stock

    Antlia ALP-T Dual Band 5nm Highspeed Filter ALP-T Dual Band 5nm Highspeed Filters are further optimized to work with high-speed imaging systems by ...

    View full details
    Original price $400.00 - Original price $475.00
    Original price
    $400.00 - $475.00
    $400.00 - $475.00
    Current price $400.00
  • Original price $400.00 - Original price $474.00
    Original price
    $400.00 - $474.00
    $400.00 - $474.00
    Current price $400.00

    Antlia ALP-T Dual Band 5nm Filter

    In stock

    Antlia ALP-T Dual Band 5nm Filter The Antlia ALP-T dual band 5nm filter is a dual line-pass filter which was designed to be used primarily with one...

    View full details
    Original price $400.00 - Original price $474.00
    Original price
    $400.00 - $474.00
    $400.00 - $474.00
    Current price $400.00
  • Original price $30.00 - Original price $66.00
    Original price
    $30.00 - $66.00
    $30.00 - $66.00
    Current price $30.00

    ZWO UV/IR Cut Filter

    In stock

    ZWO UV/IR Cut Filter The ZWO UV/IR Cut Filter  filter is suitable for color camera with AR protect window. It’s available in 1.25″ or 2″ round moun...

    View full details
    Original price $30.00 - Original price $66.00
    Original price
    $30.00 - $66.00
    $30.00 - $66.00
    Current price $30.00
  • Original price $134.00 - Original price $134.00
    Original price
    $134.00
    $134.00 - $134.00
    Current price $134.00

    ZWO Methane CH4 Filter 1.25" (CH4)

    In stock

    ZWO Methane CH4 Filter 1.25" The ZWO Methane CH4 Filter 1.25″ is a special filter for photographic use. Its FWHM is 20 nm which is suitable for mos...

    View full details
    Original price $134.00 - Original price $134.00
    Original price
    $134.00
    $134.00 - $134.00
    Current price $134.00
  • Original price $200.00 - Original price $404.00
    Original price
    $200.00 - $404.00
    $200.00 - $404.00
    Current price $200.00

    ZWO LRGB Filters

    In stock

    ZWO LRGB Filters The new ZWO LRGB Filters  are designed to approximately equalize the flux of mono sensors. The LRGB filters have a better transmis...

    View full details
    Original price $200.00 - Original price $404.00
    Original price
    $200.00 - $404.00
    $200.00 - $404.00
    Current price $200.00
  • Original price $30.00 - Original price $30.00
    Original price
    $30.00
    $30.00 - $30.00
    Current price $30.00

    ZWO IR 850nm Pass Filter 1.25" (850IR125)

    In stock

    ZWO IR 850nm Pass Filter 1.25" The ZWO IR 850nm Pass Filter 1.25″ suitable for IR sensitive cameras. The transmission properties of the IR 850nm Pa...

    View full details
    Original price $30.00 - Original price $30.00
    Original price
    $30.00
    $30.00 - $30.00
    Current price $30.00
  • Original price $174.00 - Original price $944.00
    Original price
    $174.00 - $944.00
    $174.00 - $944.00
    Current price $174.00

    ZWO H-alpha, OIII & SII 7nm Narrowband SHO Filters

    In stock

    ZWO SHO Narrowband Filters The ZWO SHO Narrowband Filter Set contains one H-alpha, one OIII and one SII filter. Use it for tricolor CCD astrophotog...

    View full details
    Original price $174.00 - Original price $944.00
    Original price
    $174.00 - $944.00
    $174.00 - $944.00
    Current price $174.00
  • Original price $73.00 - Original price $73.00
    Original price
    $73.00
    $73.00 - $73.00
    Current price $73.00

    Antares 2" Variable Neutral Density Filter 3-40% (2FXP)

    In stock

    Antares 2" Neutral Density Filter Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lun...

    View full details
    Original price $73.00 - Original price $73.00
    Original price
    $73.00
    $73.00 - $73.00
    Current price $73.00
  • Original price $46.55 - Original price $46.55
    Original price
    $46.55
    $46.55 - $46.55
    Current price $46.55

    Antares 1.25" Variable Neutral Density Filter 3-40% (FXP)

    In stock

    Antares 1.25" Variable Neutral Density Filter 3-40% Neutral density filters can reduce brightness across the visual spectrum without losing resolut...

    View full details
    Original price $46.55 - Original price $46.55
    Original price
    $46.55
    $46.55 - $46.55
    Current price $46.55
Free Shipping

in Canada over 500$+

Buy Now, Pay Later

Paybright and Sezzle at Check Out

Target the Right Equipment

Contact us!

Price Match

Find a Better Price? We Will Match it!

Sign Up to Astronomy Plus Newsletters

Subscribe to our Newsletter to be the first to be inform about Promotions, New Products and More!

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare