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

    Celestron - Omni XLT 150mm Optical Tube Assembly (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#: 31057-1

    Regular Price: $299.95

    Special Price: $249.95

  2. 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#: 21090-1
    $499.00

  3. 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#: 11068-OTA
    $389.95

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

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

    The Celestron EdgeHD 925 catadioptric optical tube includes state of the art EdgeHD optical coatings to reduce the effect of coma, which is a major advantage for visual astronomy when adding the StarBright XLT coatings which increase light transmission.

    NOTE: This is a demo version.

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    (48 States)
    Model#: 91040-XLT-DM
    $1,999.95

  5. 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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    (48 States)
    Model#: 91040-XLT

    Regular Price: $2,299.00

    Special Price: $2,069.00

  6. 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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    (48 States)
    Model#: 91030-XLT

    Regular Price: $1,299.00

    Special Price: $1,169.00

  7. 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#: 91031-XLT

    Regular Price: $1,299.00

    Special Price: $1,169.00

  8. 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#: u91060-xlt
    $4,995.00

  9. 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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    (48 States)
    Model#: 91060-XLT

    Regular Price: $5,799.00

    Special Price: $5,219.00

  10. Celestron EdgeHD 1100 11"  Optical Tube Assembly - DEMO

    Celestron - EdgeHD 1100 11" Optical Tube Assembly - DEMO - Full Factory Warranty

    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.....

    NOTE: This is a demo version.

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    (48 States)
    Model#: 91050-XLT-DM
    $2,650.00

  11. 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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    (48 States)
    Model#: 91050-XLT

    Regular Price: $3,399.00

    Special Price: $3,059.00

  12. 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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    (48 States)
    Model#: 91025-XLT
    $1,479.00

  13. 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#: 91024-XLT
    $1,039.00

  14. 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#: 91020-XLT

    Regular Price: $1,049.00

    Special Price: $839.95

  15. 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, Aluminum Optical Tube, Celestron's premium StarBright XLT coatings

    ...
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    (48 States)
    Model#: 91010-XLT
    $428.95

  16. 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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    FREE SHIPPING
    (48 States)
    Model#: 52291

    Regular Price: $549.95

    Special Price: $538.95

  17. 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#: 91038-XLT
    $4,999.00

  18. 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#: 91067-XLT
    $1,895.00

  19. 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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    (48 States)
    Model#: 91036-XLT
    $1,695.00

  20. Celestron - C 9.25" XLT OTA w/  CGE Style Dovetail Mount Bracket 925 Optical Tube Assembly

    Celestron - C 9.25" XLT OTA w/ CGE Style Dovetail Mount Bracket 925 Optical Tube Assembly

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

    ...
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    (48 States)
    Model#: 91027-XLT

    Regular Price: $1,449.00

    Special Price: $1,189.00

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