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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. Officina Stellare RiLA 500 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 500 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 500 has a f/5 focal ratio.

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    Model#: RILA500SGA
    $36,367.35

  2. DayStar Filters SolaREDi 66mm Dedicated Solar Telescope Chromosphere

    DayStar Filters - SolaREDi 66mm Dedicated Solar Telescope Chromosphere

    The DayStar Instrument SolaREDi 66 Solar Telescope is a state of the art designed solar instrument specifically targeted for observing Hydrogen Alpha wavelength with the 2.3X telecentric barlow lens.

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    (48 States)
    Model#: DSR66C

    Regular Price: $1,995.00

    Special Price: $1,295.00

  3. Orion EON 115mm ED Triplet Apochromatic Refractor Telescope

    Orion - EON 115mm ED Triplet Apochromatic Refractor Telescope

    The Orion EON 115mm ED Triplet Refractor as a well affordable priced wide field instrument, excellent for astrophotographers who strive for a true-color instrument.

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    Model#: 10087
    $1,799.99

  4. Officina Stellare RiDK 600 f/7 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiDK 600 f/7 Standard Glass Aluminum-Carbon Optical Tube

    The Riccard Dall-Kirkham 600 Astrograph is a state of the art optical tube designed by Massimo Riccardi, the Chief Optical Designer at Officina Stellare who has created a 24" astrograph resulting in fantastic astro-imaging performance and quality.

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    Model#: RIDK600SGA
    $54,085.33

  5. Officina Stellare RiDK 500 f/7 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiDK 500 f/7 Standard Glass Aluminum-Carbon Optical Tube

    The Riccard Dall-Kirkham 500 Astrograph is a state of the art optical tube designed by Massimo Riccardi, the Chief Optical Designer at Officina Stellare who has created a 500mm astrograph resulting in fantastic astro-imaging performance and quality.

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    Model#: RIDK500SGA
    $34,560.00

  6. Officina Stellare RiDK 400 f/7 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiDK 400 f/7 Standard Glass Aluminum-Carbon Optical Tube

    The Riccard Dall-Kirkham 400 Astrograph is a state of the art optical tube designed by Massimo Riccardi, the Chief Optical Designer at Officina Stellare who has created a 400mm astrograph resulting in fantastic astro-imaging performance and quality.

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    Model#: RIDK400SGA
    $21,985.71

  7. Officina Stellare RiLA 800 f/5 Ceramic Glass Full-Carbon Optical Tube
  8. Officina Stellare RiLA 800 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 800 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 800 has a f/5 focal ratio.

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    Model#: RILA800SGA
    $127,436.28

  9. Officina Stellare RiLA 700 f/5 Ceramic Glass Full-Carbon Optical Tube
  10. Officina Stellare RiLA 700 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 700 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 700 has a f/5.2 focal ratio.

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    Model#: RILA700SGA
    $72,198.18

  11. Officina Stellare RiLA 600 f/5 Ceramic Glass Full-Carbon Optical Tube
  12. Officina Stellare RiLA 600 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 600 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 600 has a f/5 focal ratio.

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    Model#: RILA600SGA
    $54,901.33

  13. Officina Stellare - RiLA 500 f/5 Ceramic Glass Full-Carbon Optical Tube
  14. Officina Stellare Pro RC 800 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 800 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate glass.

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    Model#: PRC800CGA
    $163,360.80

  15. Borg - 71FL Fluorite Optical Tube - Fork Mount Set

    Borg - 71FL Fluorite Optical Tube - Fork Mount Set

    Fork mount set for the Borg 71FL Fluorite Optical Tube.

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    (48 States)
    Model#: 0271
    $1,450.00

  16. 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

  17. 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
    $749.00

  18. 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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    Model#: S11100
    $649.00

  19. 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

  20. 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

Items 101 to 120 of 229 total

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