Order By Phone
STORE FRONT: 5348 Topanga Canyon Blvd, Woodland Hills CA 91364

Welcome!

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.

Items 21 to 40 of 225 total

per page

List  Grid 

Set Descending Direction
  1. Meade - 16" LX200-ACF (f/10) Advanced Coma-Free OTA

    Meade - 16" LX200-ACF (f/10) Advanced Coma-Free OTA

    Meade now brings to market a sophisticated Catadioptric optical design favored by research facilities worldwide at a price many enthusiasts can afford.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: MEA-1610-60-01
    $6,599.00

  2. RC10
  3. RC12.5

    Optical Guidance Systems - Ritchey-Chretien 12.5 " f/9 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC12.5
    $19,900.00

  4. Optical Guidance Systems - Ritchey-Chretien 14.5 " f/7.9 - Optical Tube Assembly

    Optical Guidance Systems - Ritchey-Chretien 14.5 " f/7.9 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC14.5
    $24,900.00

  5. RC16

    Optical Guidance Systems - Ritchey-Chretien 16 " f/8.4 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC16
    $37,900.00

  6. RC20

    Optical Guidance Systems - Ritchey-Chretien 20 " f/8.1 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC20
    $58,900.00

  7. RC24

    Optical Guidance Systems - Ritchey-Chretien 24 " f/8 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RC24
    $83,900.00

  8. Optical Guidance Systems - Classic Cassegrain 10 " f/9 Truss or closed tube - Optical Tube Assembly
  9. Optical Guidance Systems - Classic Cassegrain 12.5 " f/9 - Optical Tube Assembly

    Optical Guidance Systems - Classic Cassegrain 12.5 " f/9 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC12.5
    $19,900.00

  10. Optical Guidance Systems - Classic Cassegrain 14.5 " f/7.9 - Optical Tube Assembly

    Optical Guidance Systems - Classic Cassegrain 14.5 " f/7.9 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC14.5
    $24,900.00

  11. Optical Guidance Systems - Classic Cassegrain 16 " f/8.4 - Optical Tube Assembly

    Optical Guidance Systems - Classic Cassegrain 16 " f/8.4 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC16
    $37,900.00

  12. Optical Guidance Systems - Classic Cassegrain 20 " f/8.1 - Optical Tube Assembly

    Optical Guidance Systems - Classic Cassegrain 20 " f/8.1 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC20
    $58,900.00

  13. Optical Guidance Systems - Classic Cassegrain 24 " f/8 - Optical Tube Assembly

    Optical Guidance Systems - Classic Cassegrain 24 " f/8 - Optical Tube Assembly

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC24
    $83,900.00

  14. Orion - 80mm f/11.4 Refractor Telescope Optical Tube

    Orion - 80mm f/11.4 Refractor Telescope Optical Tube

    * Ideal for use as a guide scope * Guiding enables long exposure astrophotography * 1.25" focuser * One-year limited warrantyThis quality Orion 80mm F/11 ... Learn More
    Model#: ORI-07380
    $126.95

  15. Orion Premium 190mm F/5.3 Mak-Newt Astrograph Telescope OTA

    Orion - Premium 190mm F/5.3 Mak-Newt Astrograph Telescope OTA

    As one of our satisfied customers put it, the Orion 190mm Maksutov-Newtonian Astrograph Telescope gives "BIG APO Refractor-like performance at 1/3 the cost", not to mention the savings over smaller premium astrographs.

    ...
    Learn More
    Model#: ORI-09978
    $1,599.99

  16. Orion - Starblast 4.5 Imaging Optical Tube Assembly

    Orion - Starblast 4.5 Imaging Optical Tube Assembly

    Simply the most affordable astrophotography-optimized telescope available! Big 4.5" primary mirror and fast f/4 focal ratio produce stunning images with short exposure times.

    ...
    Learn More
    Model#: ORI-09974
    $149.95

  17. Orion 10" f/8 Ritchey Cretien Optical Tube Assembly

    Orion - 10 " f/8 Ritchey Cretien Optical Tube Assembly

    Go after even the most elusive and faint deep-sky targets with the Orion 10" f/8.0 Ritchey-Chretien Astrograph. Featuring virtually coma-free optics for superb imaging performance, the Orion 10" f/8.0 Ritchey-Chretien Astrograph boasts a plethora of deluxe features

    ...
    Learn More
    Model#: ORI-08961
    $2,694.95

  18. PlaneWave 12.5" CDK Corrected Dall-Kirkham Carbon Fiber Telescope

    PlaneWave - 12.5" CDK12.5 Corrected Dall-Kirkham Carbon Fiber Telescope

    The new CDK optical design is the innovative solution for unsurpassed astroimaging quality at an affordable price.

    ...
    Learn More
    Model#: 125101

    Regular Price: $12,000.00

    Special Price: $9,995.00

  19. PlaneWave 20" CDK Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    PlaneWave - 20" CDK20 Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    The new CDK optical design is the innovative solution for unsurpassed astroimaging quality at an affordable price

    ...
    Learn More
    Model#: 200101
    $32,500.00

  20. PlaneWave 17" CDK Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    PlaneWave - 17" CDK17 Corrected Dall-Kirkham Carbon Fiber Truss Telescope

    The latest member of the CDK family is the CDK17 New and Improved in 2013. The CDK optical design is the innovative solution for unsurpassed astro-imaging quality at an affordable price.

    ...
    Learn More
    Model#: 170101
    $22,000.00

Items 21 to 40 of 225 total

per page

List  Grid 

Set Descending Direction