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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.

Items 81 to 100 of 236 total

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  1. RC12.5

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

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    FREE SHIPPING
    (48 States)
    Model#: RC12.5

    Available - Ships in 2-4 Days

    $19,900.00

  2. RC10

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

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    FREE SHIPPING
    (48 States)
    Model#: RC10

    Available - Ships in 2-4 Days

    $14,900.00

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

    Available - Ships in 2-4 Days

    $19,900.00

  8. 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

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CC10

    Available - Ships in 2-4 Days

    $14,900.00

  9. 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

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $16,650.00

  10. Officina Stellare Veloce Riccardi-Honders 200AT f/3 Astrograph

    Officina Stellare - Veloce Riccardi-Honders 200AT f/3 Astrograph

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    Model#: VELRH200AT

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    Regular Price: $11,764.29

    Special Price: $10,595.00

  11. Officina Stellare Veloce RH 300 F/3 Astrograph

    Officina Stellare - Veloce RH 300 f/3 Astrograph

    The New version of Officina Stellare Veloce RH 300 - Riccardi-Honders Astrograph is a premier, innovative, Officina Stellare exclusive!

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    Model#: VELRH300

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $27,540.00

  12. Officina Stellare RiLA 800 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 800 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 800 has a f/5 focal ratio.

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    Model#: RILA800SGA

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $127,436.28

  13. Officina Stellare RiLA 800 f/5 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RiLA 800 f/5 Ceramic Glass Full-Carbon Optical Tube

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    Model#: RILA800CGC

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $162,763.53

  14. Officina Stellare RiLA 700 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 700 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 700 has a f/5.2 focal ratio.

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    Learn More
    Model#: RILA700SGA

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $72,198.18

  15. Officina Stellare RiLA 700 f/5 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RiLA 700 f/5 Ceramic Glass Full-Carbon Optical Tube

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    Model#: RILA700CGC

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $110,258.18

  16. Officina Stellare RiLA 600 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 600 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 600 has a f/5 focal ratio.

    ...
    Learn More
    Model#: RILA600SGA

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $54,901.33

  17. Officina Stellare RiLA 600 f/5 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RiLA 600 f/5 Ceramic Glass Full-Carbon Optical Tube

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    Model#: RILA600CGC

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $59,662.40

  18. Officina Stellare RiLA 500 f/5 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 500 f/5 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 500 has a f/5 focal ratio.

    ...
    Learn More
    Model#: RILA500SGA

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $36,367.35

  19. Officina Stellare - RiLA 500 f/5 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RiLA 500 f/5 Ceramic Glass Full-Carbon Optical Tube

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    Model#: RILA500CGC

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $44,169.80

  20. Officina Stellare RiLA 400 f/5.2 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RiLA 400 f/5.2 Standard Glass Aluminum-Carbon Optical Tube

    The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 400 has a f/5.2 focal ratio.

    ...
    Learn More
    Model#: RILA400SGA

    This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

    $20,778.26

Items 81 to 100 of 236 total

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