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  • Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20

    Astrodon Blue Filter - E & I Series

    DON-B2_27R

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

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    Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20
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  • Original price $209.00 - Original price $445.50
    Original price
    $209.00 - $445.50
    $209.00 - $445.50
    Current price $209.00

    Astrodon Clear Filter - UV-Blocked, No NIR Blocking

    DON-C2_27R

    UV-Blocked Clear filters with 395 nm cut-on (50% transmission at 395 nm) and at least 97% transmission to 1000 nm. Often purchased with our photome...

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    Original price $209.00 - Original price $445.50
    Original price
    $209.00 - $445.50
    $209.00 - $445.50
    Current price $209.00
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  • Original price $223.30 - Original price $435.60
    Original price
    $223.30 - $435.60
    $223.30 - $435.60
    Current price $223.30

    Astrodon Exo-Planet Filter - Clear with Blue-Blocking

    DON-XOPBB_27R

    Astrodon introduced the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.Although it may not seem poss...

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    Original price $223.30 - Original price $435.60
    Original price
    $223.30 - $435.60
    $223.30 - $435.60
    Current price $223.30
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  • Original price $302.50 - Original price $302.50
    Original price
    $302.50
    $302.50 - $302.50
    Current price $302.50

    Astrodon Extra Port w/ Helical Focuser

    DON-MMOAG-PORT

    Astrodon Extra Port w/ Helical Focuser

    Original price $302.50 - Original price $302.50
    Original price
    $302.50
    $302.50 - $302.50
    Current price $302.50
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  • Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20

    Astrodon Green Filter - E Series

    DON-G2_E27R

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

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    Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20
    Sold out
  • Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20

    Astrodon Green Filter - I Series

    DON-G2_I27R

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 I-Series Tru-Balance F...

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    Original price $222.20 - Original price $487.30
    Original price
    $222.20 - $487.30
    $222.20 - $487.30
    Current price $222.20
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  • Original price $682.00 - Original price $1,740.20
    Original price
    $682.00 - $1,740.20
    $682.00 - $1,740.20
    Current price $682.00

    Astrodon H-alpha Filter - 3nm

    DON-HA3_27R

    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...

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    Original price $682.00 - Original price $1,740.20
    Original price
    $682.00 - $1,740.20
    $682.00 - $1,740.20
    Current price $682.00
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  • Original price $459.80 - Original price $1,512.50
    Original price
    $459.80 - $1,512.50
    $459.80 - $1,512.50
    Current price $459.80

    Astrodon H-alpha Filter - 5nm

    Options available
    1 variants in stock

    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...

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    Original price $459.80 - Original price $1,512.50
    Original price
    $459.80 - $1,512.50
    $459.80 - $1,512.50
    Current price $459.80
  • Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80

    Astrodon Johnson/Cousins B Filter

    DON-B***_27R

    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

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    Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80
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  • Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80

    Astrodon Johnson/Cousins Ic Filter

    DON-Ic*_27R

    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

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    Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80
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  • Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80

    Astrodon Johnson/Cousins Rc Filter

    DON-Rc*_27R

    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

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    Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80
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  • Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80

    Astrodon Johnson/Cousins U Filter

    DON-UV*_27R

    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

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    Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80
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  • Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80

    Astrodon Johnson/Cousins V Filter

    DON-V*_27R

    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

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    Original price $261.80 - Original price $665.50
    Original price
    $261.80 - $665.50
    $261.80 - $665.50
    Current price $261.80
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  • Original price $204.60 - Original price $204.60
    Original price
    $204.60
    $204.60 - $204.60
    Current price $204.60

    Astrodon L2P Light Pollution Luminance Filter

    DON-L2P_31R

    Our L2P filters are designed to be used the same way that you would use a regular Astrodon Luminance filter, either by itself or as part of a LRGB ...

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    Original price $204.60 - Original price $204.60
    Original price
    $204.60
    $204.60 - $204.60
    Current price $204.60
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  • Original price $662.20 - Original price $3,315.40
    Original price
    $662.20 - $3,315.40
    $662.20 - $3,315.40
    Current price $662.20

    Astrodon LRGB Filter Set - E Series

    DON-LRGB2_E27R

    Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical thr...

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    Original price $662.20 - Original price $3,315.40
    Original price
    $662.20 - $3,315.40
    $662.20 - $3,315.40
    Current price $662.20
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  • Original price $662.20 - Original price $1,719.30
    Original price
    $662.20 - $1,719.30
    $662.20 - $1,719.30
    Current price $662.20

    Astrodon LRGB Filter Set - I Series

    DON-LRGB2_I27R

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 I-Series Tru-Balance F...

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    Original price $662.20 - Original price $1,719.30
    Original price
    $662.20 - $1,719.30
    $662.20 - $1,719.30
    Current price $662.20
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  • Original price $222.20 - Original price $476.30
    Original price
    $222.20 - $476.30
    $222.20 - $476.30
    Current price $222.20

    Astrodon Luminance Filter

    DON-L2_27R

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

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    Original price $222.20 - Original price $476.30
    Original price
    $222.20 - $476.30
    $222.20 - $476.30
    Current price $222.20
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  • Original price $1,083.50 - Original price $1,083.50
    Original price
    $1,083.50
    $1,083.50 - $1,083.50
    Current price $1,083.50

    Astrodon MegaMOAG Off-Axis Guider - 4" to 3"

    DON-MeMOAG

    The MegaMOAG takes the design of the MonsterMOAG and adapts it for telescope systems with larger optical openings. It comes with the same camera-s...

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    Original price $1,083.50 - Original price $1,083.50
    Original price
    $1,083.50
    $1,083.50 - $1,083.50
    Current price $1,083.50
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  • Original price $132.00 - Original price $132.00
    Original price
    $132.00
    $132.00 - $132.00
    Current price $132.00

    Astrodon MMOAG Helical Focuser

    DON-MMOAG-Focuser

    Astrodon MMOAG Helical Focuser

    Original price $132.00 - Original price $132.00
    Original price
    $132.00
    $132.00 - $132.00
    Current price $132.00
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  • Original price $599.50 - Original price $1,507.00
    Original price
    $599.50 - $1,507.00
    $599.50 - $1,507.00
    Current price $599.50

    Astrodon MonsterMOAG Off-Axis Guider - 3"

    DON-MMOAG-1

    MOAG means Manual Off-Axis Guider. It allows you to guide your telescope to obtain sharp, round stars by guiding in front of your filters using unf...

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    Original price $599.50 - Original price $1,507.00
    Original price
    $599.50 - $1,507.00
    $599.50 - $1,507.00
    Current price