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Showing 1–12 of 29 results
  • Astrodon One Shot Color Luminance Filter (UV / IR Cut) For Celestron RASA 8″

    $125.00

    Astrodon One Shot Color Luminance Filter (UV / IR Cut) for the Celestron RASA 8″ swaps out for filter in the RASA internal filter holder (knurled cell optical window). The Astrodon One Shot Color Luminance Filter (UV / IR Cut) is used primarily to “bracket” the color-corrected band of RASA telescopes. This filter can also be used as a “visible” filter in RGBV (red-green-blue-visible) astrophotography.

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  • Astrodon L2P Light Pollution Luminance Filter

    $169.00

    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 filter set. The L2P filters are recommended for imaging in urban and/or light polluted areas.

     

     

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  • Astrodon Close-Out Stromgren Filters: discontinued, special order remnants, odd sizes, etc.

    $500.00$1,000.00

    These are high quality Astrodon Photometric Stromgren filters left over from Special Orders and over production. Many are types and/or sizes not commonly in production.

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  • Astrodon Close-Out Sloan Filters: discontinued, special order remnants, odd sizes, etc.

    $75.00$1,000.00

    These are high quality Astrodon Photometric Sloan filters left over from Special Orders and over production. Many are types and/or sizes not commonly in production.

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  • Astrodon Close-Out Johnson-Cousins Filters: discontinued, special order remnants, odd sizes, etc.

    $200.00$1,250.00

    These are high quality Astrodon Photometric Johnson-Cousins filters left over from Special Orders and over production. Many are types and/or sizes not commonly in production.

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  • Astrodon H-β filter, 15nm bandpass (Close-Out)

    $350.00$360.00

    This filter isolates only the hydrogen-beta line of the spectrum (486nm) in a 15nm wide bandpass.

     

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  • Astrodon 20 nm Filters – H-α 20nm (Close-Out)

    $350.00$360.00

    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter, and this 20nm H-α is the same formulation but in a wider bandpass. Hydrogen is ubiquitous in the cosmos and is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet objects (Crescent, Thor’s Helmet) and supernova remnants (Veil). Many imagers like to present just a black-and-white H-α image of an object. It is has a beauty all by itself, like an Ansel Adams photo.

     

     

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  • Astrodon LRGB Gen2 I-Series Tru-Balance Filters, INDIVIDUAL FILTERS

    $184.00$403.00

    Luminance and Blue Filters are the same in both the E and I series. Purchase them under our E Series Individual Filter listing.

    In stock ship usually ship within 3 weeks.

    You may click the “Get an alert” button to be notified when an out of stock filter is back in stock. It is necessary to pay for back-ordered filters immediately to reserve your spot in our wait list. Often we have more orders for out of stock filters than we have incoming filters. Many Astrodon filters are perpetually out of stock for this reason.

    SIMPLIFY YOUR IMAGING!
    Astrodon LRGB Gen2 I-Series Tru-Balance Filter Sets were designed for cameras containing Interline Transfer sensors.

     

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  • Astrodon LRGB Gen2 E-Series Tru-Balance Filters, INDIVIDUAL FILTERS

    $184.00$403.00

    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.

    Filters in stock ship usually ship within 3 weeks.

    You may click the “Get an alert” button to be notified when an out of stock filter is back in stock. It is necessary to pay for back-ordered filters immediately to reserve your spot in our wait list. Often we have more orders for out of stock filters than we have incoming filters. Many Astrodon filters are perpetually out of stock for this reason.

    SIMPLIFY YOUR IMAGING!
    The E-Series filters were designed for cameras containing the full-frame KAF8300, KAF3200, KAF6303, KAF16803 sensors. They are also a good choice for the latest Sony and back-thinned sensor or any Progressive Scan Sensor, Front Illuminated or Back Illuminated.

     

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  • Astrodon MMOAG Off Axis Guider

    $875.00$1,750.00

    GUIDE YOUR TELESCOPE IN FRONT OF YOUR FILTERS NEW DESIGN!! ACCOMMODATES UP TO 4 GUIDE PORTS.

    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 unfiltered light in the same optical beam as your imaging camera.

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  • Astrodon ExoPlanet Light Curve Filters

    $185.00$360.00

    Astrodon introduced the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.

     

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  • Astrodon Photometrics Johnson-Cousins Filters

    $216.00$550.00

    Filters in stock ship usually ship within 1 week. Filters on back-order usually ship within 3-6 weeks.

    You may click the “Get an alert” button to be notified when an out of stock filter is back in stock. It is necessary to pay for back-ordered filters immediately to reserve your spot in our wait list. Often we have more orders for out of stock filters than we have incoming filters. Many Astrodon filters are perpetually out of stock for this reason.

    Standard sizes are 1.25″, 31mm, 50mm round, and 50mm square. The 1.25″ is 27.5 mm of filter glass mounted in a 1.25″ filter cell. The 31mm is 27.5mm of filter glass mounted in a 31mm ring. More information here:

    Unlike other Astrodon filters, the Photometric filters (Johnson-Cousins and Sloan) do not come as 36mm of unmounted glass. For those who want 36mm round for use in a 36mm filter wheel, 27.5 mm of filter glass can be mounted in our 36mm adapter. More information on 36mm mount here:

    We also have a limited quantity of 12mm and 25mm (call for pricing and availability).

    100%-Coated for long-term durability and consistency of research with the highest throughput.

     

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