Happily Serving You in the Same Location for Over 58 Years!

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 81 to 100 of 163 total

per page
Page:
  1. 5

Set Ascending Direction
  1. 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

  2. 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

  3. 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

  4. 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

  5. Optical Guidance Systems - Classic Cassegrain 10 " f/9 Truss or closed tube - Optical Tube Assembly
  6. 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.

    ...
    Learn More
    Model#: RIDK 300
    $24,873.00

  7. Meade 8" LX200-ACF (f/10) Advanced Coma-Free OTA (UHTC)

    Meade - 8" LX200-ACF (f/10) Advanced Coma-Free OTA - (UHTC)

    Meade now brings to market a sophisticated Catadioptric optical design favored by research facilities worldwide at a price many enthusiasts can afford.  Most professional applications are this style telescope or a gargantuan apochromatic refractor.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 0810-60-00
    $1,299.00

  8. Meade - 20" LX400-ACF (f/8) Advanced Coma-Free OTA

    Meade - 20" LX400-ACF (f/8) Advanced Coma-Free OTA

    Meade - 20 " LX400-ACF OTA F/8.0 Advanced Coma-Free with UHTC ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 2006-40-00
    $19,999.00

  9. 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#: 1610-60-00
    $9,999.00

  10. 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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1608-80-00
    $9,999.00

  11. Meade - 14" LX200-ACF (f/10) Advanced Coma-Free OTA

    Meade - 14" LX200-ACF (f/10) Advanced Coma-Free OTA

    So, you're finally planning on buying your first telescope.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1410-60-00
    $5,499.00

  12. 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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1408-80-00
    $5,999.00

  13. Meade 12" LX200-ACF Optical Tube Assembly

    Meade - 12" LX200-ACF (f/10) Advanced Coma-Free OTA

    With all these innovations and technological features built in, what's not to like about the Meade LX-200 ACF 12 inch Computerized Telescope - except maybe for the fact that you don't yet own one!  

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1210-60-00
    $2,999.00

  14. 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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1208-80-00
    $3,499.00

  15. Meade 115mm Series 6000 ED Triplet APO (f/7) OTA

    Meade - 115mm Series 6000 ED Triplet APO (f/7) OTA

    Meade 115mm ED Triplet APO Refractor #4507-00-05. For crisp wide field observing and imaging, nothing can beat a true triple-element Apochromatic Refractor (APO)

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 4507-00-05
    $1,999.00

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

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

    Picture yourself sitting in your friend Bill's backyard, with your other colleagues and friends Janice, Frank,  Sue and Zeak. All of you have come together to commemorate Earth Hour

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1010-60-00
    $1,799.00

  17. Meade - 10" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Meade - 10" ACF Advanced Coma-Free (f/8) Optical Tube Assembly - (UHTC)

    Building on Meade’s award-winning Advanced Coma-Free (ACF) optics, the 12" OTA employs a fast f/8 optical system with high-contrast baffling that insures crisp, pinpoint imaging to the very edge of the field

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: 1008-80-00
    $2,499.00

  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 81 to 100 of 163 total

per page
Page:
  1. 5

Set Ascending Direction