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Filters & Filter Wheels

  • Original price $12.95 - Original price $12.95
    Original price
    $12.95
    $12.95 - $12.95
    Current price $12.95

    Astro-Tech 1.25" #ND9 13% Transmission Neutral Density Grey Moon Filter

    Astro-Tech
    In Stock

    This economical Astro-Tech ND9 neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary v...

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    Original price $12.95 - Original price $12.95
    Original price
    $12.95
    $12.95 - $12.95
    Current price $12.95
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #23A Light Red 1.25" Color Filter

    Astro-Tech
    In Stock

    This #23A light red Astro-Tech 1.25" eyepiece filter is useful when observing Mercury and Venus during the day and at twilight and when observing M...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #56 Light Green 1.25" Color Filter

    Astro-Tech
    In Stock

    If you have a scope 6" in aperture and under, this Astro-Tech #56 light green 1.25" eyepiece filter is a useful tool for observing different featur...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $19.95 - Original price $19.95
    Original price
    $19.95
    $19.95 - $19.95
    Current price $19.95

    Antares 2" #ND9 13% Transmission Neutral Density Grey Moon filter

    Antares
    More on the way

    This Antares ND9 (neutral density 0.9) gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary o...

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    Original price $19.95 - Original price $19.95
    Original price
    $19.95
    $19.95 - $19.95
    Current price $19.95
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #21 Orange 1.25" Color Filter

    Astro-Tech
    In Stock

    This #21 orange Astro-Tech 1.25" eyepiece filter is useful in improving contrast when observing the Moon and all planets out to Saturn in telescope...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $79.00 - Original price $79.00
    Original price
    $79.00
    $79.00 - $79.00
    Current price $79.00

    ZWO Filter Drawer M42

    ZWO
    In Stock

    ZWO 2-inch Filter Drawer with 21mm ring design is independently developed by ZWO, which includes M42 * 0.75 male thread (camera side) and M48 * 0.7...

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    Original price $79.00 - Original price $79.00
    Original price
    $79.00
    $79.00 - $79.00
    Current price $79.00
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #47 Violet 1.25" Color Filter

    Astro-Tech
    In Stock

    If you have a big scope (8" in aperture and larger), this Astro-Tech #47 violet 1.25" eyepiece filter can help detect high clouds and haze over the...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #12 Medium Yellow 1.25" Color Filter

    Astro-Tech
    In Stock

    This #12 medium yellow Astro-Tech 1.25" eyepiece filter is helpful in improving lunar and Martian contrast in telescopes 4" to 8" in aperture, part...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $199.00 - Original price $199.00
    Original price
    $199.00
    $199.00 - $199.00
    Current price $199.00

    Optolong L-Pro 2" Light Pollution Filter

    Optolong
    More on the way

    The Optolong 2" L-Pro light pollution filter is a great way to suppress the issues caused by all these lights that are all around us. This mounted ...

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    Original price $199.00 - Original price $199.00
    Original price
    $199.00
    $199.00 - $199.00
    Current price $199.00
  • Original price $309.00 - Original price $309.00
    Original price
    $309.00
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    Current price $309.00

    Optolong L-Extreme 2" Light Pollution Dual Passband Imaging Filter 7Nm Ha/Oiii

    Optolong
    In Stock

    Take back the night sky by using the Optolong L-eXtreme 2" Dual Passband filter when imaging. Take your backyard imaging to places you never though...

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    Original price $309.00 - Original price $309.00
    Original price
    $309.00
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    Current price $309.00
  • Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00

    Optolong L-Enhance 2" Light Pollution Tri-Band Imaging Filter

    Optolong
    In Stock

    Take back the night sky by using the Optolong L-eNhance 2" Tri-band filter when imaging. A convenient and economic way to eNhance your nightly pass...

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    Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00
  • Original price $119.95 - Original price $119.95
    Original price
    $119.95
    $119.95 - $119.95
    Current price $119.95

    Celestron 48mm UHC Narrowband Filter for 2" Eyepieces

    Celestron
    In Stock

    This 2" Celestron ultra high contrast (UHC) light pollution filter blocks out most unwanted light pollution, making it easier to pick out faint neb...

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    Original price $119.95 - Original price $119.95
    Original price
    $119.95
    $119.95 - $119.95
    Current price $119.95
  • Original price $19.95 - Original price $19.95
    Original price
    $19.95
    $19.95 - $19.95
    Current price $19.95

    Astro-Tech 2" Crystalview Moon Filter

    Astro-Tech
    Sold Out

    This Astro-Tech 2” 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planet...

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    Original price $19.95 - Original price $19.95
    Original price
    $19.95
    $19.95 - $19.95
    Current price $19.95
    Sold out
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Celestron 18% Transmission Green 1.25" Moon Filter

    Celestron
    More on the way

    This medium green 22mm clear aperture 1.25" eyepiece filter reduces irradiation, glare, and excess image brightness in lunar observing. It also imp...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $299.00 - Original price $299.00
    Original price
    $299.00
    $299.00 - $299.00
    Current price $299.00

    ZWO EFW 5-Position Filter Wheel For 2" Filters

    ZWO
    More on the way

    This low profile ZWO filter wheel is just what your monochrome camera ordered. Inside the CNC body of the ZWO EFW 5 position filter wheel you will ...

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    Original price $299.00 - Original price $299.00
    Original price
    $299.00
    $299.00 - $299.00
    Current price $299.00
  • Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95

    Astro-Tech #58 Dark Green 1.25" Color Filter

    Astro-Tech
    In Stock

    This Astro-Tech #58 dark green 1.25" eyepiece filter is very helpful when observing the Moon and Mars, plus enhances a variety of features on all t...

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    Original price $11.95 - Original price $11.95
    Original price
    $11.95
    $11.95 - $11.95
    Current price $11.95
  • Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95

    Celestron 1.25" UHC Narrowband Filter

    Celestron
    In Stock

    This Celestron ultra high contrast (UHC) light pollution filter has improved contrast when compared with the wider passband of a broadband filter, ...

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    Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95
  • Original price $159.50 - Original price $159.50
    Original price
    $159.50
    $159.50 - $159.50
    Current price $159.50

    Thousand Oaks LP-4 H-Beta Line Band Filter for 2" Eyepieces

    Thousand Oaks
    More on the way

    Very steep cut-off slopes and a narrow passband make this 2" Thousand Oaks H-Beta filter ideal for viewing certain very faint emission nebulas like...

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    Original price $159.50 - Original price $159.50
    Original price
    $159.50
    $159.50 - $159.50
    Current price $159.50
  • Original price $179.00 - Original price $179.00
    Original price
    $179.00
    $179.00 - $179.00
    Current price $179.00

    Optolong L-Enhance 1.25" Light Pollution Tri-Band Imaging Filter

    Optolong
    In Stock

    Take back the night sky by using the Optolong L-eNhance 1.25" Tri-Band filter when imaging. A convenient and economic way to eNhance your nightly p...

    View full details
    Original price $179.00 - Original price $179.00
    Original price
    $179.00
    $179.00 - $179.00
    Current price $179.00
  • Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00

    Optolong H-Alpha 7nm 2" Filter

    Optolong
    More on the way

    The H-Alpha 7nm from Optolong works fantastically as a photographic filter, but also works for viewing faint emission nebula. Optolong filters are ...

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    Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00
  • Original price $144.95 - Original price $144.95
    Original price
    $144.95
    $144.95 - $144.95
    Current price $144.95

    Celestron 48mm Oxygen III Line Band Filter for 2" Eyepieces

    Celestron
    In Stock

    This new Celestron 2" Oxygen III light pollution line filter isolates the two glowing emission lines of doubly-ionized oxygen (at 4959 Ångstroms an...

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    Original price $144.95 - Original price $144.95
    Original price
    $144.95
    $144.95 - $144.95
    Current price $144.95
  • Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95

    Celestron 1.25" Oxygen III Line Band Filter

    Celestron
    In Stock

    This Celestron Oxygen III light pollution filter has a very narrow passband for very high contrast on emission nebulas, making it a good choice for...

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    Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95
  • Original price $299.00 - Original price $299.00
    Original price
    $299.00
    $299.00 - $299.00
    Current price $299.00

    ZWO EFW 7X36 Version II

    ZWO
    More on the way

    This low profile ZWO filter wheel is just what your monochrome camera ordered. Inside the CNC body of the ZWO EFW 7 position filter wheel you will ...

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    Original price $299.00 - Original price $299.00
    Original price
    $299.00
    $299.00 - $299.00
    Current price $299.00
  • Original price $399.00 - Original price $399.00
    Original price
    $399.00
    $399.00 - $399.00
    Current price $399.00

    ZWO EFW 7-Position Filter Wheel for 2"

    ZWO
    More on the way

    This low profile 7 position ZWO filter wheel is just what your monochrome camera ordered. Inside the CNC body of the ZWO EFW 7 position filter whee...

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    Original price $399.00 - Original price $399.00
    Original price
    $399.00
    $399.00 - $399.00
    Current price $399.00

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