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  1. ASA - 2" Barlow Corrector 1.8x

    ASA - 2" Barlow Corrector 1.8x

    To correct the field of view ASA uses the correctors designed by Dipl. Phys. Philipp Keller. All correctors have sufficient backfocus to be connected to all popular camera systems.

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    Model#: 2KORRB
    $1,287.00

  2. 2KORRR

    ASA - 2" Reducer Corrector 0.73x

    To correct the field of view ASA uses the correctors designed by Dipl. Phys. Philipp Keller. All correctors have sufficient backfocus to be connected to all popular camera systems.

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    Model#: 2KORRR
    $1,086.00

  3. ASA - 3" Reducer Corrector 0.73x

    ASA - 3" Reducer Corrector 0.73x

    To correct the field of view ASA uses the correctors designed by Dipl. Phys. Philipp Keller. All correctors have sufficient backfocus to be connected to all popular camera systems.

    ...
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    Model#: 3KORRR
    $1,365.00

  4. ASA - 3" Wynne Corrector 0.95x

    ASA - 3" Wynne Corrector 0.95x

    To correct the field of view ASA uses the correctors designed by Dipl. Phys. Philipp Keller. All correctors have sufficient backfocus to be connected to all popular camera systems.

    ...
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    Model#: 3KORRW
    $1,287.00

  5. ASA - 4" Wynne Corrector 1.0x

    ASA - 4" Wynne Corrector 1.0x

    To correct the field of view ASA uses the correctors designed by Dipl. Phys. Philipp Keller. All correctors have sufficient backfocus to be connected to all popular camera systems.

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    Model#: 4KORRW
    $1,885.00

  6. ASA - OK3 Focuser

    ASA - OK3 Focuser

    Astrosysteme Austria is pleased to announce the OK3-Z electronic focuser. With a 20kg payload and improved stability, the ASA OK Focuser is still compatible with all ASA Astrographs as well as other telescopes from other manufacturers.

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    Model#: ASAOK3
    $1,280.00

  7. Astrodon - MegaMOAG-DUAL

    Astrodon - MegaMOAG-DUAL

    Mega MOAG Dual Off-Axis GuiderMOAG means Manual Off-AxisGuider, a non-moving part of your optical train.For those requiring multiple guide ports, Astrodon introduces theMegaMOAG-Dual ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: MeMOAG-Dual
    $1,200.00

  8. Astrodon - Narrowband - 50mm Square H-a 3 nm Filter

    Astrodon - Narrowband - 50mm Square H-a 3 nm Filter

    Narrowband Filters      Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, ... Learn More
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    (48 States)
    Model#: HA3-50S
    $1,095.00

  9. Astrodon - Narrowband - 50mm Square OIII 3 nm Filter

    Astrodon - Narrowband - 50mm Square OIII 3 nm Filter

    Narrowband Filters      Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII3-50S
    $1,095.00

  10. Astrodon - Narrowband - 50mm Square SII 3 nm Filter

    Astrodon - Narrowband - 50mm Square SII 3 nm Filter

    Narrowband FiltersNarrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-50S
    $1,095.00

  11. Astrodon - NIR Tricolor - 50mm dia. NIRL123 Tri-color Imaging (Set of 4)

    Astrodon - NIR Tricolor - 50mm dia. NIRL123 Tri-color Imaging (Set of 4)

    NIR Tricolor Filters        The NIR region remains largely unexplored by amateur imagers. Perhaps this is due to the impression that the Si CCD camera is not sufficiently sensitive in the NIR ... Learn More
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    (48 States)
    Model#: NIRL123-50R
    $1,150.00

  12. Astrodon - Tru-Balance E-Series - 50mm Square CRGB Filter

    Astrodon - Tru-Balance E-Series - 50mm Square CRGB Filter

    What really distinguishes E-Series Tru-Balance filters is their ability to regulate the transition of photons. Within 10%, the RGB color combine weights are about 1:1:1 which means the observor must only take one dark for equal time multiple expores for RGB.

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    (48 States)
    Model#: CRGB2-E50S
    $1,150.00

  13. Astrodon - Tru-Balance E-Series - 50mm Square LRGB Filter

    Astrodon - Tru-Balance E-Series - 50mm Square LRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E50S
    $1,150.00

  14. Astrodon - Tru-Balance E-Series - 65mm Square LRGB Filters for SBIG STX

    Astrodon - Tru-Balance E-Series - 65mm Square LRGB Filters for SBIG STX

    TRU-BALANCE FILTERS SIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2_E65S
    $1,895.00

  15. Baader Planetarium - D-ERF Energy rejection filter 135mm with IR-Cut dielectric coating

    Baader Planetarium - D-ERF Energy rejection filter 135mm with IR-Cut dielectric coating

    Baader Planetarium D-ERF Energy Rejection Filter, 135mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: DERF-135
    $1,172.00

  16. Baader Planetarium - D-ERF Energy rejection filter 160mm with IR-Cut dielectric coating

    Baader Planetarium - D-ERF Energy rejection filter 160mm with IR-Cut dielectric coating

    Baader Planetarium D-ERF Energy Rejection Filter, 160mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: DERF-160
    $1,497.00

  17. Celestron - CGEM Computerized Mount

    Celestron - CGEM Computerized Mount

    Celestron CGEM Computerized MountOverview CGEM Computerized Mount - General Features Holds a maximum instrument capacity of 40 lbs CGEM Computerized Equatorial Mount Ultra sturdy 2" steel tripod with Accessory Tray CGEM Computerized Mount -

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    FREE SHIPPING
    (48 States)
    Model#: 91526
    $1,499.00

  18. new bf30

    Coronado - 30mm Blocking Filter

    The 30mm Blocking Filter is a 2" straight through design and comes with a 1.25" Zero Length reducer

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    Model#: BF30
    $1,599.00

  19. Coronado - Adapter Plate for Celestron 14 SM90

    Coronado - Adapter Plate for Celestron 14 SM90

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    Model#: AP145
    $1,012.00

  20. Coronado - Retro fit module for SM60P

    Coronado - Retro fit module for SM60P

    Fully integrated Ha telescope 60mm aperture ... Learn More
    Model#: SM60DB
    $1,790.00

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