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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 150 OTA

    Celestron - Omni XLT 150 OTA

    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
    $299.95

  2. Meade 10" LX80 Schmidt-Cassegrain Optical Tube Assembly (OTA) w/UHTC

    Meade - 10" LX80 Schmidt-Cassegrain Optical Tube Assembly (OTA) w/UHTC

    The Meade 10" SC Schmidt-Cassegrain includes (254mm) f/10 optical tube with industry leading Ultra-High Transmission Coatings (UHTC) achieving 15% better light transmission than standard coatings

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    FREE SHIPPING
    (48 States)
    Model#: 1010-08-00
    $1,199.00

  3. Vixen ED100Sf 100mm (3.9 inch) ED Apochromatic Refractor Optical Tube Assembly

    Vixen - ED100Sf 100mm (3.9 inch) ED Apochromatic Refractor Optical Tube Assembly

    The Vixen ED100Sf 100mm ED Apochromatic Refractor includes Extra-Low Dispersion glass that reduces aberration to create sharp images.

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    FREE SHIPPING
    (48 States)
    Model#: 2618
    $699.00

  4. Celestron - 6" Newtonian Reflector Optical Tube Assembly

    Celestron - 6" Newtonian Reflector Optical Tube Assembly

    The Celestron Advanced VX 6" Newtonian Telescope is excellent for basic deep sky observing as well as planetary observing due to its impressive light gathering power of the mirrors and mid fast focal ratio.

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    Model#: 32054-OTA

    Regular Price: $269.00

    Special Price: $179.00

  5. Orion ShortTube 80-T Refractor Telescope

    Orion - ShortTube 80-T Refractor Telescope

    The Orion ShortTube 80-T Optical Tube assembly is an f/5 multi-coated 400mm refractor that provides excellent wide field of views with excellent contrast for viewing planets.

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    Model#: 09946

    Regular Price: $179.99

    Special Price: $149.99

  6. Bresser Messier AR-127S/635 Optical Tube Assembly

    Bresser - Messier AR-127S/635 Optical Tube Assembly

    The Bresser Messier AR-127S/635 127mm refractor is excellent for touring the solar system! Planets like Jupiter and Saturn will show cloud bands, moons, and even Saturn's rings with just the use of this telescope. Closer to Earth, the moon's craters and surface geological features will all become visible.

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    (48 States)
    Model#: BR-27635

    Regular Price: $869.99

    Special Price: $519.00

  7. Celestron - Rowe-Ackermann Schmidt Astrograph OTA

    Celestron - Rowe-Ackermann Schmidt Astrograph OTA

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    (48 States)
    Model#: Rowe-Ackermann Schmidt Astrograph Optical Tube Assembly
    $3,499.00

  8. Bresser Messier AR-102/1000 Optical Tube Assembly

    Bresser - Messier AR-102/1000 Optical Tube Assembly

    The Bresser Messier AR-102/1000 Refractor OTA is capable of showing many details in celestial objects like Saturn's rings, Jupiter's cloud bands as well as craters on the moon.

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    (48 States)
    Model#: BR-02100

    Regular Price: $606.99

    Special Price: $369.00

  9. Bresser Messier AR-90/900 Optical Tube with EXOS-1 EQ Mount and Tripod

    Bresser - Messier AR-90/900 Optical Tube with EXOS-1 EQ Mount and Tripod

    With a light gathering power of 200x more than the human eye, the Bresser Messier AR-90/900 is an excellent telescope for beginner astronomers that still want to detailed views delivered. Details in Saturn's rings, storms on Jupiter, moon craters and even the seasons of Mars are all apparent through this telescope.

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    (48 States)
    Model#: BR-90900

    Regular Price: $440.99

    Special Price: $299.00

  10. Bresser - Messier AR-80/900 Optical Tube with EQ Sky Mount and Tripod

    Bresser - Messier AR-80/900 Optical Tube with EQ Sky Mount and Tripod

    The Bresser Messsier AR-80/900 is an excellent scope for beginners due to its remarkable light gathering power for better detailed observation.

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    (48 States)
    Model#: BR-80900

    Regular Price: $313.99

    Special Price: $209.00

  11. Celestron NexStar 6SE Optical Tube Assembly

    Celestron - NexStar 6SE 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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    FREE SHIPPING
    (48 States)
    Model#: 11068-OTA
    $389.95

  12. MallinCam Micro-EX 960H EXview HAD II CCD Camera VRC-6 Combo

    MallinCam - Micro-EX 960H EXview HAD II CCD Camera - VRC-6 Combo

    MallinCam's new combo includes the lightweight, versatile and compact Micro-EX CCD video camera in conjunction with the 6" MallinCam VRC-6, a full Ritchey-Chretien optical tube scope, which has been optimized for video applications. The combination of these two MallinCam instruments gives enough light-gathering ability to resolve even the most obscure of objects. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: Micro-EX-VRC-6
    $599.00

  13. FLI Proline 16803 Monochrome CCD Camera with 10-pos Filter Wheel, Atlas Focuser, and NP-127IS Refractor

    FLI - Proline 16803 Monochrome CCD Camera with 10-pos Filter Wheel, Atlas Focuser, and NP-127IS Refractor

    This package also includes the Televue NP-127IS combined with the power of the ProLine 16803 camera!

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    (48 States)
    Model#: K1000-NPI-5054

    Regular Price: $23,374.00

    Special Price: $21,465.00

  14. Explore Scientific 152mm f/8 Carbon Fiber Triplet Refractor Telescope with 3" Focuser

    Explore Scientific - 152mm f/8 Carbon Fiber Triplet Refractor Telescope with 3" Focuser

    The Explore Scientific ED152 refractor utilizes a carbon fiber for a lightweight optical tube that resists fluctuations in temperature changes, saving you the annoyance of refocusing making it particularly well suited to astro-photography.

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    FREE SHIPPING
    (48 States)
    Model#: TED15208CFC3
    Offer ends October 31, 2014!

    Regular Price: $5,999.99

    Special Price: $5,299.99

  15. TeleVue 127mm f/5.3 APO (Nagler-Petzval) Astrograph Refractor

    TeleVue - 127mm f/5.3 APO (Nagler-Petzval) Astrograph Refractor

    Tele Vue Optics and Finger Lakes Instrumentation have teamed together to create a "turn-key," wide-field imaging system dedicated to the astro-imager. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: NPF-5055
    Pre-Order now for September 2014 Delivery!

    Regular Price: $8,995.00

    Special Price: $6,795.00

  16. MallinCam VRC-12 - 304mm Ritchey-Chretien Aluminum Optical Tube Assembly

    MallinCam - VRC-12 - 304mm Ritchey-Chrétien Aluminum Optical Tube Assembly

    At last, a video-Ritchey-Chrétien scope with the kind of high performance you expect from this configuration and yet will not drain your bank account. The Ritchey-Chrétien concept provides more precise images with greater clarity than the traditional Schmidt-Cassegrain (SCT) telescope.cts the scope to the mount.

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    (48 States)
    Model#: VRC-12
    $3,499.99

  17. MallinCam VRC-10 254mm True Ritchey-Chrétien  Dual Hyperbolic Optical Tube Assembly

    MallinCam - VRC-10 - 254mm True Ritchey-Chrétien Dual Hyperbolic Carbon Fiber Optical Tube Assembly

    MallinCam partnered with Guan Sheng Optical (GSO) in Taiwan to bring you this exceptional piece of astronomical equipment. The optical tubes have been calibrated in order to function in perfect harmony with MallinCam cameras. 

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    FREE SHIPPING
    (48 States)
    Model#: VRC-10
    $2,899.99

  18. MallinCam VRC-8 203mm Hyperbolic Mirror True Ritchey-Chretien Aluminum Optical Tube Assembly

    MallinCam - VRC-8 - 203mm Hyperbolic Mirror True Ritchey-Chrétien Carbon Fiber Optical Tube Assembly

    At last, a video-Ritchey-Chrétien scope with the kind of high performance you expect from this configuration and yet will not drain your bank account. The Ritchey-Chrétien concept provides more precise images with greater clarity than the traditional Schmidt-Cassegrain (SCT) telescope. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: VRC-8-CF
    $1,499.99

  19. MallinCam VRC-8 203mm Hyperbolic Mirror true Ritchey-Chretien Optical Tube Assembly

    MallinCam - VRC-8 - 203mm Hyperbolic Mirror True Ritchey-Chretien Aluminum Optical Tube Assembly

    The tube of the MallinCam VRC-8 sports lightweight, sturdy aluminum construction and is finished in white. Both of the hyperbolic mirrors are engineered from zero-thermal-expansion quartz, and feature dielectric coatings, boasting an impressive 99 per cent reflectivity. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: VRC-8
    $1,079.99

  20. MallinCam VRC-6 152mm Ritchey-Chretien Optical Tube Assembly

    MallinCam - VRC-6 - 152mm Ritchey-Chretien Optical Tube Assembly

    The tube of the MallinCam VRC-6 sports lightweight, sturdy aluminum construction and is finished in white. Both of the hyperbolic mirrors are engineered from zero-thermal-expansion quartz, and feature dielectric coatings, boasting an impressive 93 per cent reflectivity. Each mirror can be separately collimated for exquisite precision and the collimation can be locked. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: VRC-6
    $499.99

Items 41 to 60 of 165 total

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