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OTA

The optical tube is really the heart of your night time exploration.  Sizes range from 50mm to 20" in diameter as well as f/ratios from f/2.2 to f/15.  The optical designs range from simple doublet refractors to complex cassegrains with built-in field flatteners.  There is literally something for everyone here, you just have to decide what path you want to walk down.  We are always here to help with any questions you have.

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  • $519.00 - $519.00
    $519.00
    $519.00 - $519.00
    $519.00

    Astro-Tech AT72EDII Refractor OTA FPL-53 and Lanthanum f/6 Doublet

    Astro-Tech
    In Stock

    The Astro-Tech AT72EDII takes the performance, and mechanics, of the "product everyone should own" (thank you Astronomy Magazine) and gives it an u...

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    $519.00 - $519.00
    $519.00
    $519.00 - $519.00
    $519.00
  • $419.00 - $419.00
    $419.00
    $419.00 - $419.00
    $419.00

    Astro-Tech AT60ED 60mm f/6 FPL-53ED and Lanthanum Doublet

    Astro-Tech
    In Stock

    This Astro-Tech ED refractor has: 60mm f/6 fully multicoated FPL-53 and Lanthanum doublet refractor optics dual-speed Rack and Pinion 2” focuser w...

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    $419.00 - $419.00
    $419.00
    $419.00 - $419.00
    $419.00
  • $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00

    Astro-Tech AT70ED 2.8" f/6 ED Refractor OTA

    Astro-Tech
    In Stock

    This Astro-Tech AT70ED refractor has: 70mm f/6 fully multicoated doublet optics using FK-61 ED glass dual-speed 2" Rack and Pinion focuser 2" and ...

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    $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00
  • $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    Astro-Tech 60mm Photoguide Refractor OTA

    Astro-Tech
    In Stock

    The new Astro-Tech AT60GS 60mm guidescope with upgraded helical focuser makes highly accurate autoguiding of deep space astrophotos affordable for ...

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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • Save $249.00 Save $0.00
    $849.00
    $849.00 - $849.00
    $849.00
    $600.00
    $600.00 - $600.00
    $600.00

    Astro-Tech AT60EDP 60mm f/5 Dual ED Petzval OTA

    Astro-Tech
    In Stock

    This unique Astro-Tech apochromatic ED petzval fast focal ratio refractor has an incredible flat field for your astro-photography endeavors.  This ...

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    $849.00
    $849.00 - $849.00
    $849.00
    $600.00
    $600.00 - $600.00
    $600.00
    Save $249.00 Save $0.00
  • $540.00 - $540.00
    $540.00
    $540.00 - $540.00
    $540.00

    Sky-Watcher Evostar 72mm f/5.8 ED Doublet Apochromatic Refractor

    Sky-Watcher
    In Stock

    The Evostar 72ED is a portable powerhouse. It is true that great things can come in a small package.. This Sky-Watcher Evostar 72ED apochromatic re...

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    $540.00 - $540.00
    $540.00
    $540.00 - $540.00
    $540.00
  • $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00

    Sky-Watcher Evoguide 50DX APO Refractor/ Guidescope S11174

    Sky-Watcher
    In Stock

    Sky-Watcher EvoGuide 50DX 50mm ED APO Refractor / Guidescope The Sky-Watcher EvoGuide 50DX brings apochromatic performance to a compact, lightweigh...

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    $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00
  • $1,536.00 - $1,536.00
    $1,536.00
    $1,536.00 - $1,536.00
    $1,536.00

    Takahashi FS-60Q Refractor Telescope

    Takahashi
    More on the way

    The FS series of apochromatic refracting telescopes from Takahashi provides a balance of high performance, compact size, and low cost.  The FS seri...

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    $1,536.00 - $1,536.00
    $1,536.00
    $1,536.00 - $1,536.00
    $1,536.00
  • $899.00 - $899.00
    $899.00
    $899.00 - $899.00
    $899.00

    ZWO FF65 APO Refractor OTA

    ZWO
    More on the way

    The ZWO FF series is a potential fit for your astro-photography needs.   The ZWO FF65 APO is a high-performance 65mm f/6.4 astrograph designed for ...

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    $899.00 - $899.00
    $899.00
    $899.00 - $899.00
    $899.00
  • TV-60 60mm f/6 apo body
    $867.00 - $867.00
    $867.00
    $867.00 - $867.00
    $867.00

    TeleVue TV-60 60mm f/6 APO Refractor Body

    TeleVue
    More on the way

    This TeleVue TV-60 is a high performance 2.4" apochromatic doublet scope that will surprise you as much with the magnitude of its performance as it...

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    $867.00 - $867.00
    $867.00
    $867.00 - $867.00
    $867.00
  • FS-60CB 2.4" F/5.9 fluorite doublet apo
    $1,040.00 - $1,040.00
    $1,040.00
    $1,040.00 - $1,040.00
    $1,040.00

    Takahashi FS-60CB 2.4" f/5.9 Fluorite Doublet APO Refractor

    Takahashi
    More on the way

    This compact Takahashi refractor optical tube makes an ideal eclipse scope and a super travel and backyard scope for spur-of-the-moment observing. ...

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    $1,040.00 - $1,040.00
    $1,040.00
    $1,040.00 - $1,040.00
    $1,040.00
  • $1,734.00 - $1,734.00
    $1,734.00
    $1,734.00 - $1,734.00
    $1,734.00

    TeleVue TV-76 3" (76mm) f/6.3 Ivory Tube/Black Trim APO Refractor OTA

    TeleVue
    In Stock

    This TeleVue TV-76 refractor has out of this world optics in a very compact 14.5" long body. It's small enough and light enough to take anywhere wi...

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    $1,734.00 - $1,734.00
    $1,734.00
    $1,734.00 - $1,734.00
    $1,734.00
  • $2,236.00 - $2,236.00
    $2,236.00
    $2,236.00 - $2,236.00
    $2,236.00

    Lunt LS60MT Modular Telescope H-Alpha Pressure Tuned Rack And Pinion Focuser With B600

    Lunt Solar Systems
    More on the way

    Featuring Best in Class Resolution and Professional Grade Optics Configuration 4.2mm Image Size >.65a Bandpass (Single Stack) >.45a Bandpass...

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    $2,236.00 - $2,236.00
    $2,236.00
    $2,236.00 - $2,236.00
    $2,236.00
  • $2,582.00 - $2,582.00
    $2,582.00
    $2,582.00 - $2,582.00
    $2,582.00

    Lunt Solar Systems LS60MT Modular Telescope H-Alpha Pressure Tuned 2" Rack And Pinion Focuser With B1200

    Lunt Solar Systems
    More on the way

    The B1200 model is the best choice for photography over the B600 4.2mm Image Size >.65a Bandpass (Single Stack) >.45a Bandpass (Double Stack...

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    $2,582.00 - $2,582.00
    $2,582.00
    $2,582.00 - $2,582.00
    $2,582.00
  • $2,340.00 - $2,340.00
    $2,340.00
    $2,340.00 - $2,340.00
    $2,340.00

    Takahashi FOA-60Q Ortho Apochromatic Refractor

    Takahashi
    More on the way

    The included 1.7x extender takes the FOA-60 to another level, as well as letter.  This combination is referred to as the FOA-60Q.  You will simply ...

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    $2,340.00 - $2,340.00
    $2,340.00
    $2,340.00 - $2,340.00
    $2,340.00
  • $1,499.00 - $1,499.00
    $1,499.00
    $1,499.00 - $1,499.00
    $1,499.00

    ZWO FF80 APO Refractor OTA

    ZWO
    More on the way

    The ZWO FF80 APO is a highly refined 80mm f/7.5 quadruplet apochromatic refractor, built from the ground up to deliver uncompromising optical perfo...

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    $1,499.00 - $1,499.00
    $1,499.00
    $1,499.00 - $1,499.00
    $1,499.00
  • $3,499.00 - $3,499.00
    $3,499.00
    $3,499.00 - $3,499.00
    $3,499.00

    ZWO FF130 APO Refractor OTA

    ZWO
    More on the way

    The ZWO FF130 APO is a high-performance 130mm f/7.7 quadruplet refractor designed to meet the needs of astrophotographers and visual observers who ...

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    $3,499.00 - $3,499.00
    $3,499.00
    $3,499.00 - $3,499.00
    $3,499.00
  • $2,010.00 - $2,010.00
    $2,010.00
    $2,010.00 - $2,010.00
    $2,010.00

    Takahashi FC-76DS Refractor Telescope

    Takahashi
    More on the way

    The Takahashi FC-76DS is an updated version of the beloved Takahashi from 1980.  The fluorite doublet will truly take you back to the future. Like ...

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    $2,010.00 - $2,010.00
    $2,010.00
    $2,010.00 - $2,010.00
    $2,010.00
  • $1,600.00 - $1,600.00
    $1,600.00
    $1,600.00 - $1,600.00
    $1,600.00

    Takahashi FC-76DCU Refractor Telescope

    Takahashi
    More on the way

    Relive the 80's with this updated version of a Takahashi Classic, the Takahashi FC-76DCU. Like the FS series, the FC series are apochromatic refrac...

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    $1,600.00 - $1,600.00
    $1,600.00
    $1,600.00 - $1,600.00
    $1,600.00
  • $1,734.00 - $1,734.00
    $1,734.00
    $1,734.00 - $1,734.00
    $1,734.00

    TeleVue TV-76 3" (76mm) f/6.3 Evergreen Tube/Black Trim APO Refractor OTA

    TeleVue
    More on the way

    The TV-76 uses a 3" (76mm) true apochromatic doublet lens using an SD (special dispersion) glass element. Thanks to this special low chromatic disp...

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    $1,734.00 - $1,734.00
    $1,734.00
    $1,734.00 - $1,734.00
    $1,734.00
  • $799.00 - $799.00
    $799.00
    $799.00 - $799.00
    $799.00

    ZWO FF65 APO OTA

    ZWO
    More on the way

    The ZWO FF series is a potential fit for your astro-photography needs. The ZWO FF65 APO is a flat field astrograph that can be used visually as wel...

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    $799.00 - $799.00
    $799.00
    $799.00 - $799.00
    $799.00
  • $1,580.00 - $1,580.00
    $1,580.00
    $1,580.00 - $1,580.00
    $1,580.00

    Takahashi FOA-60 Ortho Apochromatic Refractor

    Takahashi
    More on the way

    The Takahashi FOA-60 is a fantastic compact fluorite doublet refractor with correction similar to the larger TOA series. The FOA-60 is a new compac...

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    $1,580.00 - $1,580.00
    $1,580.00
    $1,580.00 - $1,580.00
    $1,580.00

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