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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 C11-A XLT (CG-5) Optical Tube Assembly

    Celestron - C11-A XLT (CG-5) 11" Optical Tube Assembly

    Schmidt-Cassegrain optical tubes like the Celestron C11-A XLT have unique features that set them aside from pure reflectors and refractors.

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    (48 States)
    Model#: CEL-91067-XLT

    Available - Ships in 2-4 Days

    $1,745.95

  2. Explore Scientific AR127 f/6.5 Air-Spaced Doublet Achromat Refractor

    Explore Scientific - AR127 f/6.5 Air-Spaced Doublet Achromat Refractor

    AR127 f/6.5 Air-Spaced Doublet with EMD Coatings; Deluxe Two-Speed 2-inch Crayford Focuser; Cradle Rings with Handle and Vixen-Style Dovetail Mount; 8x50 Straight Finderscope; Enhanced 99% Reflective 2-inch Diagonal with 1.25-inch Adapter

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    Model#: DAR127065-01

    In Stock

    $599.99

  3. Explore Scientific 152mm f/6.5 Achromatic Optical Tube Assembly

    Explore Scientific - 152mm f/6.5 Achromatic Optical Tube Assembly

    The AR152 (six-inch), with its larger aperture optics gathers 44% more light over the AR127 (five-inch) model, providing much brighter images and higher resolution

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    Model#: DAR152065-01

    In Stock

    $799.99

  4. 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.

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    Model#: MEA-0810-60-01

    In Stock

    Save Until October 31st!

    Regular Price: $999.00

    Special Price: $899.00

  5. Meade 10" LX200-ACF Optical Tube Assembly

    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

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    Model#: MEA-1010-60-01

    In Stock

    Save Until October 31st!

    Regular Price: $1,699.00

    Special Price: $1,499.00

  6. 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!  

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    Model#: MEA-1210-60-01

    In Stock

    Save Until October 31st!

    Regular Price: $2,899.00

    Special Price: $2,599.00

  7. Meade 14" LX200-ACF Optical Tube Assembly

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

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

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    Model#: MEA-1410-60-01

    In Stock

    Save Until October 31st!

    Regular Price: $7,799.00

    Special Price: $3,999.00

  8. 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.

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    (48 States)
    Model#: MEA-1610-60-01

    In Stock

    Save Until October 31st!

    Regular Price: $6,599.00

    Special Price: $5,599.00

  9. RC10

    Optical Guidance Systems - Ritchey-Chretien 10 " f/9 Truss or closed tube - Optical Tube Assembly

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    Model#: RC10

    Available - Ships in 2-4 Days

    $14,900.00

  10. RC12.5

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

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    Model#: RC12.5

    Available - Ships in 2-4 Days

    $19,900.00

  11. 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

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    Model#: RC14.5

    Available - Ships in 2-4 Days

    $24,900.00

  12. RC16

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

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    Model#: RC16

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $37,900.00

  13. RC20

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

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    Model#: RC20

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $58,900.00

  14. RC24

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

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    Model#: RC24

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $83,900.00

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

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

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    (48 States)
    Model#: CC10

    Available - Ships in 2-4 Days

    $14,900.00

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

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

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    (48 States)
    Model#: CC12.5

    Available - Ships in 2-4 Days

    $19,900.00

  17. 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

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    FREE SHIPPING
    (48 States)
    Model#: CC14.5

    Available - Ships in 2-4 Days

    $24,900.00

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

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

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    FREE SHIPPING
    (48 States)
    Model#: CC16

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $37,900.00

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

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

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    FREE SHIPPING
    (48 States)
    Model#: CC20

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $58,900.00

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

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

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    FREE SHIPPING
    (48 States)
    Model#: CC24

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $83,900.00

Items 21 to 40 of 235 total

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