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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.

Items 101 to 120 of 177 total

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  1. Orion - 80mm f/11.4 Refractor Telescope Optical Tube

    Orion - 80mm f/11.4 Refractor Telescope Optical Tube

    * Ideal for use as a guide scope * Guiding enables long exposure astrophotography * 1.25" focuser * One-year limited warrantyThis quality Orion 80mm F/11 ... Learn More
    Model#: 07380
    $126.95

  2. Sky-Watcher USA ProED 120mm Doublet APO Refractor

    Sky-Watcher USA - ProED 120mm Doublet APO Refractor

    Sky-Watcher high-performance ED-APO refractors offer premium optical performance for the discriminating amateur astronomer.

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    FREE SHIPPING
    (48 States)
    Model#: S11130
    Sale lasts until December 31, 2014!

    Regular Price: $1,549.00

    Special Price: $1,399.00

  3. Sky-Watcher USA ProED 100mm Doublet APO Refractor

    Sky-Watcher USA - ProED 100mm Doublet APO Refractor

    Sky-Watcher is a leader in the design and manufacturer of ED-APO systems.  Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world.

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    (48 States)
    Model#: S11120
    Sale lasts until December 31, 2014!

    Regular Price: $749.00

    Special Price: $649.00

  4. Sky-Watcher USA - ProED 80mm Doublet APO Refractor

    Sky-Watcher USA - ProED 80mm Doublet APO Refractor

    Due to their unobstructed textbook-like diffraction patterns and exotic optical properties, the ED-APO produces the sharpest, highest quality imaging obtainable from any telescope optical design.

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    (48 States)
    Model#: S11100
    Sale lasts until December 31, 2014!

    Regular Price: $649.00

    Special Price: $579.00

  5. PlaneWave 17" CDK Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    PlaneWave - 17" CDK17 Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    The latest member of the CDK family is the CDK17 New and Improved in 2013. The CDK optical design is the innovative solution for unsurpassed astro-imaging quality at an affordable price.

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    Model#: 170101
    $22,000.00

  6. PlaneWave 20" CDK Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    PlaneWave - 20" CDK20 Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    The new CDK optical design is the innovative solution for unsurpassed astroimaging quality at an affordable price

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    Model#: 200101
    $32,500.00

  7. PlaneWave 12.5" CDK Corrected Dall-Kirkham Carbon Fiber Telescope

    PlaneWave - 12.5" CDK12.5 Corrected Dall-Kirkham Carbon Fiber Telescope

    The new CDK optical design is the innovative solution for unsurpassed astroimaging quality at an affordable price.

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    Model#: 125101
    $12,000.00

  8. 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

  9. Orion - 8 " f/8 Ritchey Cretien Optical Tube Assembly

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

    * Ritchey-Chretien optical design produces superb flat-field, coma-free images that are superior to those achievable with conventional reflector or Schmidt-Cassegrain telescopes * One of the most compact Ritchey-Chretien astrographs available, at ... Learn More
    Model#: 8958
    $1,195.95

  10. Orion - Starblast 4.5 Imaging Optical Tube Assembly

    Orion - Starblast 4.5 Imaging Optical Tube Assembly

    Simply the most affordable astrophotography-optimized telescope available! Big 4.5" primary mirror and fast f/4 focal ratio produce stunning images with short exposure times.

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    Model#: 09974
    $149.95

  11. RC12.5

    Optical Guidance Systems - Ritchey-Chretien 12.5 " f/9 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC12.5
    $19,900.00

  12. RC10
  13. Celestron EdgeHD 800 Optical Tube Assembly

    Celestron - EdgeHD 800 Optical Tube Assembly

    The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images.

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    (48 States)
    Model#: 91030-XLT
    $1,299.00

  14. Celestron EdgeHD 1400 Optical Tube Assembly

    Celestron - EdgeHD 1400 Optical Tube Assembly

    The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images.

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    (48 States)
    Model#: 91060-XLT
    $5,799.00

  15. Celestron EdgeHD 1100 Optical Tube Assembly

    Celestron - EdgeHD 1100 Optical Tube Assembly

    The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images.

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    (48 States)
    Model#: 91050-XLT
    $3,399.00

  16. Celestron EdgeHD 925 Optical Tube Assembly

    Celestron - EdgeHD 925 Optical Tube Assembly

    The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images.

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    (48 States)
    Model#: 91040-XLT
    $2,299.00

  17. Celestron C14-AF XLT (CGE) Optical Tube Assembly

    Celestron - C14-A XLT (CGE) Fastar Optical Tube Assembly with StarBright XLT Coatings for the CGE Mount

    The 14” Schmidt-Cassegrain Celestron C14-A XLT is the upper-end OTA of the Schmidt-Cassegrain series. The StarBright XLT coatings help improve light transmissions to ensure the highest quality images are delivered through the

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    FREE SHIPPING
    (48 States)
    Model#: 91038-XLT

    Regular Price: $5,599.00

    Special Price: $4,399.00

  18. Celestron C11-A XLT (CGE) Optical Tube Assembly

    Celestron - C11-A XLT (CGE) Optical Tube Assembly

    Celestron C-11A OTA with Starbright XLT.

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    (48 States)
    Model#: 91036-XLT
    $1,695.00

  19. Celestron C9.25-A XLT (CGE) OTA

    Celestron - C9.25-A XLT (CGE) Optical Tube Assembly

    Celestron's high quality Schmidt Cassegrain design, available in an Optical Tube Assembly.

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    FREE SHIPPING
    (48 States)
    Model#: 91027-XLT
    $1,449.00

  20. Celestron C9.25-A XLT (CG-5) Optical Tube Assembly

    Celestron - C9.25-A XLT (CG-5) Optical Tube Assembly

    Celestron's high quality Schmidt Cassegrain design, available in an Optical Tube Assembly.

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    FREE SHIPPING
    (48 States)
    Model#: 91025-XLT
    $1,479.00

Items 101 to 120 of 177 total

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