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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. 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

  2. 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

  3. 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

  4. 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

  5. AG Optical 12.5" Imaging Harmer Wynne Astrograph

    AG Optical - 12.5" 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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    (48 States)
    Model#: iHW12.5
    $15,775.00

  6. Camera NOT included!!!

    Borg - 71FL Fluorite Optical Tube - Series 80 Set

    Series 80 set for the Borg 71FL Fluorite Optical Tube.

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    (48 States)
    Model#: 6171
    $1,150.00

  7. Borg - 71FL Fluorite Optical Tube - Fork Mount Set with Tripod

    Borg - 71FL Fluorite Optical Tube - Fork Mount Set with Tripod

    Fork mount set for the Borg 71FL Fluorite Optical Tube with Tripod.

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    FREE SHIPPING
    (48 States)
    Model#: 0271S
    $1,730.00

  8. Borg - 71FL Fluorite Optical Tube - Fork Mount Set

    Borg - 71FL Fluorite Optical Tube - Fork Mount Set

    Fork mount set for the Borg 71FL Fluorite Optical Tube.

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    (48 States)
    Model#: 0271
    $1,450.00

  9. Tripod is NOT included!!!!

    Borg - 71FL Fluorite Optical Tube - Astro Visual Set

    Astro Visual set for the Borg 71FL Fluorite Optical Tube.

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    (48 States)
    Model#: 6272
    $1,175.00

  10. Opticstar AR80S Gold DS 80mm f/5 Apochromat Refractor Optical Tube Assembly

    Opticstar - AR80S Gold DS 80mm f/5 Apochromat Refractor Optical Tube Assembly

    The Opticstar AR80S Gold Dual Speed short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a 80mm achromatic doublet that is fully broad-band multicoated to increase light transmission.

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    FREE SHIPPING
    (48 States)
    Model#: OSRAR80SGD

    Regular Price: $399.00

    Special Price: $379.05

  11. Officina Stellare Veloce Riccardi-Honders 250 f/5.6 Astrograph w/digital giant 95mm Finefocus and Rings Pair

    Officina Stellare - Veloce Riccardi-Honders 250 f/5.6 Astrograph w/digital giant 95mm Finefocus and Rings Pair

    Officina Stellare's Veloce RH 250 Riccard-Honders Astrograph features a large front full aperture corrector lens with near zero expansion glass in a Mangin mirror optical design

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    Model#: VELRH250
    $16,650.00

  12. Officina Stellare RiDK 600 f/7 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiDK 600 f/7 Standard Glass Aluminum-Carbon Optical Tube

    The Riccard Dall-Kirkham 600 Astrograph is a state of the art optical tube designed by Massimo Riccardi, the Chief Optical Designer at Officina Stellare who has created a 24" astrograph resulting in fantastic astro-imaging performance and quality.

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    Model#: RIDK600SGA
    $54,085.33

  13. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 800 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA800SGA
    $146,193.68

  14. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 700 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA700CGC
    $125,141.54

  15. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 700 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA700SGA
    $82,312.82

  16. Officina Stellare RIFAst 600 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RIFAst 600 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA600CGC
    $79,693.20

  17. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA600SGA
    $62,358.00

  18. Officina Stellare RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 500 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA500CGC
    $54,891.00

  19. Officina Stellare RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

    ...
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    Model#: RIFA500SGA
    $45,441.00

  20. Officina Stellare RIFAst 400 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 400 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    The Officina Stellare RiFAst astrograph series was designed to be a further step up from the RiLA series as far as focal ratio and field of view to accommodate a wider range of imagers, rotators, focusers and guiders!

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    Model#: RIFA400CGC
    $31,978.80

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