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  • Dropship

    SBIG StarChaser SC-4 Off-Axis Guider Camera

    SBIG
    $1,499.00

    The SBIG StarChaser SC-4 is your all-in-one solution for off-axis guiding. It is the world’s best off-axis guiding camera, measuring only 0.875″ (2...

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    $1,499.00
    Dropship
  • SCT - 2" Adapter

    Starizona
    $29.95

    Use this adapter to attach accessories with standard SCT female threads (such as a focal reducer) to a 2" focuser or visual back. This adapter has ...

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    $29.95
  • In Stock

    SCT Corrector - Adapter for 55mm Backfocus

    Starizona
    $40.00

    35.3mm T-to-T spacer (M42 female to M42 male).  This adapter takes up 35.3mm of the Starizona SCT Corrector's 90.3mm back focus. Leaving 55mm of ba...

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    $40.00
    In Stock
  • SCT Corrector v1 to SCT Threads

    Starizona
    $65.00

    This adapter gives your Starizona SCT Corrector v1 SCT Threads.   Thread Type: SCT Length: 9mm length

    $65.00
  • In Stock

    SCT Mounting Bracket for Mini Guidescopes and ASIAir

    Starizona
    $12.95

    Updated, more robust design! This bracket will fit the existing finderscope mounting holes on SCT telescopes.  It fits common finderscope style fee...

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    $12.95
    In Stock
  • Secondary Mirror Cover for Sky-Watcher 150PDS

    Backyard Universe
    $25.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $25.00
  • In Stock

    Secondary Mirror Cover for Sky-Watcher 200PDS

    Backyard Universe
    $30.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $30.00
    In Stock
  • In Stock

    Secondary Mirror Cover for Sky-Watcher 250PDS

    Backyard Universe
    $30.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $30.00
    In Stock
  • In Stock

    Secondary Mirror Cover for Sky-Watcher Quattro 150P

    Backyard Universe
    $30.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $30.00
    In Stock
  • In Stock

    Secondary Mirror Cover for Sky-Watcher Quattro 200P

    Backyard Universe
    $35.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $35.00
    In Stock
  • Secondary Mirror Cover for Sky-Watcher Quattro 250P

    Backyard Universe
    $40.00

    Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

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    $40.00
  • In Stock

    Secondary Mirror Spider TS200, CNC machined

    Backyard Universe
    $246.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics GSO Photon This secondary spider is ma...

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    $246.00
    In Stock
  • Secondary Mirror Spider TS250, CNC machined

    Backyard Universe
    $337.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for 10" TS-Optics GSO Photon This secondary spider is m...

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    $337.00
  • In Stock

    Secondary Spider for Sky-Watcher 150, CNC machined

    Backyard Universe
    $199.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 150 P/PDS/Quattro This secondary spider ...

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    $199.00
    In Stock
  • In Stock

    Secondary Spider for Sky-Watcher 200, CNC machined

    Backyard Universe
    $246.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 200 PDS/Quattro This secondary spider i...

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    $246.00
    In Stock
  • In Stock

    Secondary Spider for Sky-Watcher 250, CNC machined

    Backyard Universe
    $325.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 250 PDS/Quattro This secondary spider i...

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    $325.00
    In Stock
  • Secondary Spider TS150, CNC Machined Metal Tube ID175mm

    Backyard Universe
    $199.00

    CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for TS-Optics GSO Photon 6" This secondary spider is m...

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    $199.00
  • In Stock

    SeeStar AstroLevel

    Dark Matter Optics
    $34.95

    AstroLevel, the ultimate accessory for your ZWO SeeStar S50 smart telescope. Designed to seamlessly connect to your SeeStar's tripod, AstroLeve...

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    $34.95
    In Stock
  • In Stock

    Seestar S30 All-in-One Smart Telescope

    ZWO
    $399.00

      Start your Photography Journey with Seestar S30— Capture the Cosmos Anywhere Portable Convenience — Your Pocket Observatory Weighing no more t...

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    $399.00
    In Stock
  • In Stock

    Seestar S30 Pro All-in-One Smart Telescope

    ZWO
    $699.00

    Lightweight: Weighs only 1.65 kg. Intelligent: Smart app control with GOTO and automatic tracking — enjoy stargazing anytime, anywhere. Easy to U...

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    $699.00
    In Stock
  • In Stock

    SeeStar TH10 Fluid Tripod Head

    ZWO
    $99.00

    Seestar TH10 hydraulic tripod head is specially designed for use with Seestar smart telescopes in equatorial mode. It also compatible with most ...

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    $99.00
    In Stock
  • In Stock

    Sensor Cleaning Swab Kit (Type 2, 17mm)

    Photographic Solutions
    $34.00

    Designed for cleaning CCD, CMOS sensors, or any sensitive surface.  This kit includes:  6x SensorSwab ULTRA Cleaning Swab 1xEclipse Optic Cleaning...

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    $34.00
    In Stock
  • Sharpstar 0.84x Reducer and Flattener for Sharpstar 50EDPH Apo Triplet

    Sharpstar
    $109.00

    The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A...

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    $109.00
  • Sharpstar 50EDPH V2 APO Triplet Refractor Telescope

    Sharpstar
    $439.00

    V2 model with new tube ring and foot design.  This compact 50mm f/5.5 APO refractor telescope has triplet air-spaced APO optics, including two piec...

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    $439.00