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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. Takahashi - Mewlon 300CRS Dall-Kirkham Optical Tube Assembly

    Takahashi - Mewlon 300CRS Dall-Kirkham Optical Tube Assembly

    Dall-Kirkham Telescopes by world-renowned TakahashiJapan© combines refractor-like performance in a larger folded optic reflector design. ... Learn More
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    (48 States)
    Model#: TLK3502
    $16,995.00

  2. Takahashi Mewlon 250CRS Dall-Kirkham OTA

    Takahashi - Mewlon 250CRS Dall-Kirkham Optical Tube Assembly

    When Takahashi developed the Mewlon Correctors it meant any Mewlon-250 or 300 ever made could be converted into a flat field corrected telescope.

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    (48 States)
    Model#: TLK2502
    $9,250.00

  3. Meade - 12" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Meade - 12" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    The Meade Instruments 12" f/8 ACF Optical Tube Assembly (OTA) features a 12” aperture, f/8 optical system with Meade’s Advanced Coma Free (ACF) optics and high-contrast baffling that ensures crisp, pinpoint imaging to the very edge of the field.

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    (48 States)
    Model#: 1208-80-00
    $3,499.00

  4. Officina Stellare - RiDK 305 Riccardi Dall-Kirkham Optical Tube Assembly

    Officina Stellare - RiDK 305 Riccardi Dall-Kirkham Optical Tube Assembly

    Almost everyone knows about the high level of innovation and technology that comes with any OS products, it's clear at first sight.

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    Model#: RIDK 300
    $24,873.00

  5. ASA - 200mm Hyperbolic Astrograph

    ASA - 200mm Hyperbolic Astrograph

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    Model#: 8HSOK3ZK
    $11,235.00

  6. Meade - 16" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Meade - 16" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Building on Meade’s award-winning Advanced Coma-Free (ACF) optics

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    (48 States)
    Model#: 1608-80-00
    $9,999.00

  7. Meade - 14" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Meade - 14" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    The Meade Instruments 14" f/8 ACF Optical Tube Assembly (OTA) features a 14” aperture, f/8 optical system with Meade’s Advanced Coma Free (ACF) optics and high-contrast baffling that ensures crisp, pinpoint imaging to the very edge of the field.

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    (48 States)
    Model#: 1408-80-00
    $5,999.00

  8. 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

  9. 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

  10. 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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    (48 States)
    Model#: TED15208CFC3
    Offer ends October 31, 2014!

    Regular Price: $5,999.99

    Special Price: $5,299.99

  11. 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
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    (48 States)
    Model#: NPF-5055
    Pre-Order now for September 2014 Delivery!

    Regular Price: $8,995.00

    Special Price: $6,795.00

  12. 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

  13. Sky-Watcher USA Esprit 150mm ED Triplet APO Refractor

    Sky-Watcher USA - Esprit 150mm ED Triplet APO Refractor

    Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.

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    (48 States)
    Model#: S11430
    $6,399.00

  14. Vixen Ultra Fast Astrograph VSD 100 f/3.8 Optical Tube Assembly

    Vixen - Ultra Fast Astrograph VSD 100 f/3.8 Optical Tube Assembly

    The innovative wide and flat imaging field, that covers 645 medium format cameras, and e 5 elements in 5 group lens design completely eliminates a violet tint in chromatic aberration (blue halo).

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    (48 States)
    Model#: VSD
    $6,299.00

  15. PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 20"

    PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 20"

    This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared wavelengths.  It is diffraction limited across a 20mm image circle at the focal plane.

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    Model#: IR DK20
    $35,000.00

  16. PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 17"

    PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 17"

    This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared wavelengths.  It is diffraction limited across a 20mm image circle at the focal plane.

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    Model#: IR DK17
    $24,000.00

  17. PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 12.5"

    PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 12.5"

    This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared wavelengths.  It is diffraction limited across a 20mm image circle at the focal plane.

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    Model#: IR DK12.5
    $13,800.00

  18. PlaneWave 14" CDK Corrected Dall-Kirkham Carbon Fiber Telescope

    PlaneWave - 14" CDK Corrected Dall-Kirkham Carbon Fiber Telescope

    The PlaneWave Instruments CDK14 is a 14 inch (0.36 m) f/7.2 Corrected Dall-Kirkham Astrograph telescope. The CDK14 covers a 70 mm field of view without any field curvature, off-axis coma, or astigmatism.

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    Model#: 140101
    $15,000.00

  19. PlaneWave 0.7m CDK Corrected Dall-Kirkham Telescope

    PlaneWave - 0.7m CDK Corrected Dall-Kirkham Telescope

    PlaneWave Instruments now brings a fully automated observatory class telescope to the market in the CDK700, a 0.7 meter, Alt-Az telescope system.

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    Model#: 700101
    $200,000.00

  20. AG Optical 16" Imaging Harmer Wynne Astrograph

    AG Optical - 16" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    FREE SHIPPING
    (48 States)
    Model#: iHW16
    $27,595.00

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