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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. Celestron - C8-A XLT (CG-5) 8" Optical Tube Assembly (OTA) - 91020XLT

    Celestron - C8-A XLT (CG-5) 8" Optical Tube Assembly (OTA) - 91020XLT

    There are three major components that make up the Star Bright XLT high transmission optical system design

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    (48 States)
    Model#: CEL-91020-XLT

    In Stock

    $825.95

  2. Celestron C8-A XLT (CGE) Optical Tube Assembly

    Celestron - C8-A XLT (CGE) 8" Optical Tube Assembly

    There are three major components that make up the Star Bright XLT high transmission optical system design

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    (48 States)
    Model#: CEL-91024-XLT

    In Stock

    $795.95

  3. Celestron - C9.25-A XLT (CG-5) 9.25" Optical Tube Assembly

    Celestron - C9.25-A XLT (CG-5) 9.25" Optical Tube Assembly

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

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    Model#: 91025-XLT

    Available - Ships in 2-4 Days

    $1,195.95

  4. Celestron - C 9.25" XLT OTA w/  CGE Dovetail

    Celestron - C 9.25" XLT OTA w/ CGE Dovetail

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

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    Model#: CEL-91027-XLT

    Available - Ships in 2-4 Days

    $1,195.95

  5. Celestron - C11-A XLT  (CGE) 11" Optical Tube Assembly (OTA)

    Celestron - C11-A XLT (CGE) 11" Optical Tube Assembly (OTA)

    Celestron C-11A OTA with Starbright XLT.

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    Model#: CEL-91036-XLT

    In Stock

    $1,945.95

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

    Celestron - C14-A XLT 14" Optical Tube Assembly

    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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    (48 States)
    Model#: CEL-91038-XLT

    Available - Ships in 2-4 Days

    $4,195.95

  7. Celestron - 80ED Refractor Optical Tube Assembly

    Celestron - 80ED Refractor Optical Tube Assembly

    The pinnacle of our ED scopes, this refractor is packed with great features and excellent optics. The refractor style 80ED (APO) features a 2" rack and pinion focuser and has a bracket that can adapt to a photo tripod or attach to Celestron's Advanced GT equatorial mount.

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    Model#: CEL-52280

    In Stock

    $450.00

  8. Celestron EdgeHD 925 Optical Tube Assembly

    Celestron - EdgeHD 925 9.25" Optical Tube Assembly (OTA)

    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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    Model#: CEL-91040-XLT

    In Stock

    $2,299.00

  9. Celestron - EdgeHD 1100 11"  Optical Tube Assembly  91050-XLT

    Celestron - EdgeHD 1100 11" Optical Tube Assembly 91050-XLT

    EdgeHD optical system consists of a zero power corrector plate, a spherical primary mirror, and a secondary mirror along with a set of field flattening lenses integrated into the baffle..... ... Learn More
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    Model#: CEL-91050-XLT

    In Stock

    $3,399.00

  10. Celestron EdgeHD 1400 Optical Tube Assembly

    Celestron - EdgeHD 1400 14" 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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    Model#: CEL-91060-XLT

    In Stock

    $5,799.00

  11. Celestron EdgeHD 800 Optical Tube Assembly

    Celestron - EdgeHD 800 8" Optical Tube Assembly (OTA)

    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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    Model#: CEL-91030-XLT

    Available - Ships in 2-4 Days

    $1,299.00

  12. Celestron - C5 5" Spotting Scope

    Celestron - C5 5" Spotting Scope

    Celestron's C5 Spotting Scope is a 5" (127mm) aperture, 1250 mm f/10 Schmidt-Cassegrain optical system. Its optical excellence is the reason it was chosen by NASA for many space shuttle missions.

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    (48 States)
    Model#: CEL-52291

    In Stock

    Regular Price: $549.95

    Special Price: $538.95

  13. Celestron - C6-A-XLT (CG-5) 6" Optical Tube Assembly

    Celestron - C6-A-XLT (CG-5) 6" Optical Tube Assembly

    6" Schmidt-Cassegrain Optical Tube Assembly, Fastar Capable, Aluminum Optical Tube, Celestron's premium StarBright XLT coatings

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    (48 States)
    Model#: CEL-91010-XLT

    In Stock

    $479.95

  14. Celestron C11-A XLT (CG-5) Optical Tube Assembly

    Celestron - C11-A XLT (CG-5) 11" Optical Tube Assembly

    Schmidt-Cassegrain optical tubes like the Celestron C11-A XLT have unique features that set them aside from pure reflectors and refractors.

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    (48 States)
    Model#: CEL-91067-XLT

    Available - Ships in 2-4 Days

    $1,745.95

  15. Celestron EdgeHD 8 Optical Tube Assembly (CG5)

    Celestron - EdgeHD 8" Optical Tube Assembly (CG5)

    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#: CEL-91031-XLT

    In Stock

    $1,299.00

  16. Celestron - Omni XLT 120 OTA

    Celestron - Omni XLT 120 OTA

    Globular clusters, close binary star pairs, lunar and planetary images, will delight and amaze you! ... Learn More
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    (48 States)
    Model#: CEL-21090-1

    In Stock

    $499.00

  17. Celestron - Omni XLT 150mm Optical Tube Assembly  6" (OTA Only)

    Celestron - Omni XLT 150mm Optical Tube Assembly 6" (OTA Only)

    Omni XLT series features the stable platform of the CG-4 mount and high quality optics. ... Learn More
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    (48 States)
    Model#: CEL-31057-1

    In Stock

    Regular Price: $299.95

    Special Price: $219.95

  18. Celestron - 6" Newtonian Reflector Optical Tube Assembly

    Celestron - 6" Newtonian Reflector Optical Tube Assembly

    .....reflector optical tubes are also lightweight for their size. An aluminum optical housing not only minimizes flexure and helps equalize the temperature inside the tube, it also reduces..... ... Learn More
    Model#: CEL-32054-OTA

    Available - Ships in 2-4 Days

    Regular Price: $269.00

    Special Price: $179.00

  19. Celestron NexStar 6SE Optical Tube Assembly

    Celestron - NexStar 6SE 150mm Optical Tube Assembly

    Portability and serious performance come together in the NexStar 6 SE. The ultra portable 6 SE features a precision optical system with 1500mm focal length (f/10) and offers 44% more light gathering than a 5" telescope.

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    (48 States)
    Model#: CEL-11068-OTA

    Available - Ships in 2-4 Days

    $389.95

  20. Celestron EdgeHD 1400  14" Optical Tube Assembly

    Celestron - EdgeHD 1400 14" Optical Tube Assembly - USED

    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.

    NOTE: This is a used version.

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    (48 States)
    Model#: CEL-u91060-xlt

    Available - Ships in 2-4 Days

    $4,995.00

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