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Optical Tube Assemblies

Optical tube assemblies, commonly abbreviated by astronomers as OTAs are simply the tube of the telescope where the optics are internally located. OTAs can be helpful in a situation in which an observer has a compatible mount and doesn't want to buy a whole new telescope with a mount included. Optical Tube Assemblies can come in the form of Maksutov-Cassegrain, Astrographs, Reflectors, Refractors, Schmidt-Cassegrains and many others! With the right mounting connections and range of mount and tripod payload, OTAs are a great choice for changing optical type without changing the mount.

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  1. Takahashi - FC-100DF Steinheil Fluorite Doublet Apochromat Optical Tube Assembly - Imaging Model

    Takahashi - FC-100DF Steinheil Fluorite Doublet Apochromat Optical Tube Assembly - Imaging Model

    Takahshi has just introduced an updated version of the original FC-100 now called the FC-100D. It has been designed for the digital age.

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    Model#: TFK10110
    $2,595.00

  2. Meade - 10" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Meade - 10" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Building on Meade’s award-winning Advanced Coma-Free (ACF) optics, the 12" OTA employs a fast f/8 optical system with high-contrast baffling that insures crisp, pinpoint imaging to the very edge of the field

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    Model#: 1008-80-00
    $2,499.00

  3. Sky-Watcher USA Esprit 100mm ED Triplet APO Refractor

    Sky-Watcher USA - Esprit 100mm ED Triplet APO Refractor

    Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.

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    Model#: S11410
    $2,499.00

  4. Orion 10" f/8 Ritchey Cretien Optical Tube Assembly

    Orion - 10 " f/8 Ritchey Cretien Optical Tube Assembly

    Go after even the most elusive and faint deep-sky targets with the Orion 10" f/8.0 Ritchey-Chretien Astrograph. Featuring virtually coma-free optics for superb imaging performance, the Orion 10" f/8.0 Ritchey-Chretien Astrograph boasts a plethora of deluxe features

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    Model#: 8961
    $2,694.95

  5. TeleVue - 102i O.T.A. - Ivory

    TeleVue - 102i O.T.A. - Ivory

    The Tele Vue-102i OTA includes the following: * Hard Carrying Case * 1x Prism Compensator * 2" to 1

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    Model#: WBO-4086
    $2,480.00

  6. TeleVue - 85 Complete 85mm, f/7, APO (Doublet) Refractor - Ivory

    TeleVue - 85 Complete 85mm, f/7, APO (Doublet) Refractor - Ivory

    Televue TV-85 Complete APO Refractor - Ivory?  The Televue TV-85 is a superb travel scope, measuring only 21.5" (546mm) in length and weighing 8 lbs.?  23.6" (600mm) focal length combined with 3

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    Model#: WXC-3370
    $2,495.00

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