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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. Sky-Watcher USA 102mm Maksutov-Cassegrain Optical Tube Assembly

    Sky-Watcher USA - 102mm 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#: S11510
    $305.00

  2. Sky-Watcher USA 90mm Maksutov-Cassegrain Optical Tube Assembly

    Sky-Watcher USA - 90mm 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#: S11500
    $255.00

  3. Sky-Watcher USA 12" Quattro Imaging Newtonian Reflector Optical Tube Assembly

    Sky-Watcher USA - 12" 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

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    (48 States)
    Model#: S11230
    $1,199.00

  4. 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

  5. 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

  6. Takahashi - FSQ-130ED Astrograph

    Takahashi - FSQ-130ED Astrograph

    The new Takahashi incorporates optics that use an exceptionally advanced design that produces a flat-field astrograph a with large highly illuminated field that is further enhanced with the new dedicated 645 reducer that produces a Ø70mm image circle at f/3.5.

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    (48 States)
    Model#: FQK0130
    $12,795.00

  7. DayStar Filters Skylight 100mm Dedicated Solar Telescope 0.6Å SE Grade

    DayStar Filters - Skylight 100mm Dedicated Solar Telescope 0.6Å SE Grade

    Hand made precision 101mm Skylight Telescope with exclusive TeleVue objective Fully internal baffled

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    (48 States)
    Model#: DS06.SL100
    $6,000.00

  8. Sky-Watcher USA - 190mm Maksutov-Newtonian Optical Tube Assembly

    Sky-Watcher USA - 190mm Maksutov-Newtonian Optical Tube Assembly

    The exciting new Mak-Newtonian from Sky-Watcher is just what astrophotographers and serious visual observers have been looking for.

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    (48 States)
    Model#: S11550
    $1,500.00

  9. Officina Stellare Pro RC 400 f/8 Standard Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 400 f/8 Standard 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#: PRC400SGA
    $22,410.00

  10. Officina Stellare Pro RC 400 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 400 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#: PRC400CGA
    $27,793.80

  11. Officina Stellare Pro RC 600 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 700 f/8 Ceramic Glass Full 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#: PRC700CGC
    $118,152.00

  12. Officina Stellare Pro RC 600 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 700 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#: PRC700CGA
    $112,752.00

  13. Officina Stellare Pro RC 700 f/8 Standard Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 700 f/8 Standard 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#: PRC700SGA
    $76,394.00

  14. Officina Stellare Pro RC 600 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 600 f/8 Ceramic Glass Full 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#: PRC600CGC
    $76,828.50

  15. Officina Stellare Pro RC 600 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 600 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#: PRC600CGA
    $71,698.50

  16. Officina Stellare Pro RC 600 f/8 Standard Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 600 f/8 Standard 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.

    ...
    Learn More
    Model#: PRC600SGA
    $59,496.00

  17. Officina Stellare Pro RC 500 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 500 f/8 Ceramic Glass Full 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#: PRC500CGC
    $52,382.70

  18. Officina Stellare - Pro RC 500 f/8 Ceramic Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 500 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.

    ...
    Learn More
    Model#: PRC500CGA
    $48,062.70

  19. Officina Stellare Pro RC 500 f/8 Standard Glass Aluminum Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 500 f/8 Standard 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.

    ...
    Learn More
    Model#: PRC500SGA
    $42,930.00

  20. Officina Stellare Pro RC 400 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 400 f/8 Ceramic Glass Full 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.

    ...
    Learn More
    Model#: PRC400CGC
    $29,953.80

Items 81 to 100 of 203 total

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