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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
    $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
    $795.95

  3. Explore Scientific 152mm f/6.5 Achromatic Optical Tube Assembly

    Explore Scientific - 152mm f/6.5 Achromatic Optical Tube Assembly

    The AR152 (six-inch), with its larger aperture optics gathers 44% more light over the AR127 (five-inch) model, providing much brighter images and higher resolution

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    (48 States)
    Model#: DAR152065-01
    Explore Scientific Fireworks All Month Long Sale (ends July 31, 2016)!

    Regular Price: $799.99

    Special Price: $699.99

  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
    $649.00

  5. 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

  6. Takahashi FS-60C OTA

    Takahashi - FS-60CB 60mm (f/5.9) Fluorite Refractor Optical Tube Assembly

    Are you looking for an extreme high quality refractor telescope to serve across a variety of purposes? Then look no more... Takahashi has your answer with the FS-60CB Fluorite Refractor

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    (48 States)
    Model#: TFK6004

    Regular Price: $989.95

    Special Price: $860.00

  7. TeleVue - TV-60 OTA   60mm, f/6, APO (Doublet) Refractor.

    TeleVue - TV-60 OTA 60mm, f/6, APO (Doublet) Refractor.

    Tele Vue-60 OTA 60mm, f/6, APO (Doublet) Refractor.

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    (48 States)
    Model#: TVO-2460

    Regular Price: $1,195.00

    Special Price: $795.00

  8. DIAGONAL NOT INCLUDED

    Lunt Engineering - 102mm ED Doublet OTA

    A new optical tube by Lunt, the 102mm ED Doublet! With a slow focal ratio of f/7, this optical tube is an excellent choice for observation of the moon, sun, and planets. When using solar filter, this telescope is great for sun observing!

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    Model#: LE102OTA
    $729.00

  9. Explore Scientific ED80mm f/6 Classic White "Essential Series" Air-Spaced Triplet Refractor

    Explore Scientific - ED80mm f/6 Classic White "Essential Series" Air-Spaced Triplet Refractor

    Explore Scientific Instruction Booklet for Triplet Refractors

    This 80mm f/6 ED Apochromatic triplet is an air-spaced triplet refractor telescope for observing and photography of celestial objects. Instrument utilizing Hoya ED glass, comes equipped with a 99% dielectric-coated 2-inch diagonal. Case, Finder Scope and Mount NOT included.

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    (48 States)
    Model#: ED0806-01
    $699.99

  10. Sky-Watcher USA 8" Quattro Imaging Newtonian Reflector Optical Tube Assembly

    Sky-Watcher USA - 8" Quattro Imaging Newtonian Reflector Optical Tube Assembly

    The Sky-Watcher Quattro Imaging Newtonian telescope with dual speed focuser includes an outstanding mirror-set and a 2" dual-speed 10:1 ratio focuser for precision focusing for optimal performance

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    (48 States)
    Model#: S11210
    $610.00

  11. Sky-Watcher USA 10" Quattro Imaging Newtonian Reflector Optical Tube Assembly

    Sky-Watcher USA - 10" Quattro Imaging Newtonian Reflector Optical Tube Assembly

    The Sky-Watcher Quattro Imaging Newtonian telescope with dual speed focuser includes an outstanding mirror-set and a 2" dual-speed 10:1 ratio focuser for precision focusing for optimal performance

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    (48 States)
    Model#: S11220
    $770.00

  12. Sky-Watcher USA 150mm Maksutov-Cassegrain Optical Tube Assembly

    Sky-Watcher USA - 150mm Maksutov-Cassegrain Optical Tube Assembly

    The Sky-Watcher Maksutov-Cassegrains are the ultimate take-anywhere telescopes. Despite their small dimensions they pack a powerful punch.

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    (48 States)
    Model#: S11530
    $750.00

  13. Hutech 55FL Telephoto Lens Set

    Hutech - 55FL Telephoto Lens Set

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    (48 States)
    Model#: 6255
    $750.00

  14. Hutech 77EDII OTA (black)

    Hutech - 77EDII OTA (black)

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    (48 States)
    Model#: 6279
    $895.00

  15. Explore Scientific 208mm Newtonian f/3.9 with Carbon Fiber Tube

    Explore Scientific - 208mm Newtonian f/3.9 with Carbon Fiber Tube

    Explore Scientific - 208MM NEWTONIAN F/3.9 WITH CARBON FIBER TUBE

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    (48 States)
    Model#: N208CF
    $799.95

  16. Stellarvue Access 80mm f/7 Super ED APO Refractor

    Stellarvue - Access 80mm f/7 Super ED APO Refractor

    The Stellarvue Super 80 is an 80mm f/7 refractor with FPL53 and Lanthanum optics. Features a Stellarvue 2.5" rack and pinion precision focuser. Add an optional 2" dielectric diagonal at a reduced price! ... Learn More
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    (48 States)
    Model#: SV080A-25SV
    $699.00

  17. Stellarvue SV70T 70mm f/6 APO Triplet Refractor

    Stellarvue - SV70T 70mm f/6 APO Triplet Refractor Telescope

    The Stellarvue 70mm f/6 APO Refractor is a triplet telescope with premium FPL-53 optics with beautiful high contrast and chroma free images. Features a dual speed Stellarvue focuser with 2" and 1.25" compression ring adapters, dual tube rings, and an airline case. Add an optional 2" dielectric diagonal for a reduced price! ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: SV070T-25SV
    $799.00

  18. Meade LX70 M6 6" Maksutov-Cassegrain Optical Tube Assembly

    Meade - LX70 M6 6" Maksutov-Cassegrain Optical Tube Assembly

    The Meade LX70 6" Mak features an advanced Maksutov-Cassegrain design for pinpoint star images and extraordinary contrast, making it a great deep sky performer and ideal for detailed lunar and planetary observation as it easily soars to high magnifications.

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    FREE SHIPPING
    (48 States)
    Model#: MEA-270023
    $799.00

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