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 168 total

per page
Page:
  1. 5

Set Ascending Direction
  1. 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

  2. Optical Guidance Systems - Classic Cassegrain 10 " f/9 Truss or closed tube - Optical Tube Assembly
  3. 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, allowing a 250mm aperture, f/5.6 focal ratio, 1400mm focal length, double stage split internal light baffle, and a 3.6 micro spot size at the field's edge.

    ...
    Learn More
    Model#: VELRH250
    $16,650.00

  4. 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!

    ...
    Learn More
    Model#: VELRH300
    $27,540.00

  5. Officina Stellare RiFAst 600 f/3.8 Optical Tube Assembly

    Officina Stellare - RiFAst 600 f/3.8 Optical Tube Assembly

    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!

    ...
    Learn More
    Model#: RIFA600
    $71,887.50

  6. Officina Stellare RiFAst 500 f/3.8 Optical Tube Assembly Full Carbon

    Officina Stellare - RiFAst 500 f/3.8 Optical Tube Assembly - Full Carbon

    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!

    ...
    Learn More
    Model#: RIFA500FC
    $57,712.50

  7. Officina Stellare RiFAst 500 f/3.8 Optical Tube Assembly

    Officina Stellare - RiFAst 500 f/3.8 Optical Tube Assembly

    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!

    ...
    Learn More
    Model#: RIFA500
    $46,500.00

  8. Officina Stellare - RiFAst 400 f/3.8 Optical Tube Assembly - Full Carbon

    Officina Stellare - RiFAst 400 f/3.8 Optical Tube Assembly - Full Carbon

    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!

    ...
    Learn More
    Model#: RIFA400FC
    $30,900.00

  9. Officina Stellare RiFAst 400 f/3.8 Optical Tube Assembly

    Officina Stellare - RiFAst 400 f/3.8 Optical Tube Assembly

    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!

    ...
    Learn More
    Model#: RIFA400
    $25,650.00

  10. Officina Stellare RiFAst 300 f/3.8 Optical Tube Assembly - Full Carbon

    Officina Stellare - RiFAst 300 f/3.8 Optical Tube Assembly - Full Carbon

    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!

    ...
    Learn More
    Model#: RIFA300FC
    $23,400.00

  11. Officina Stellare RiFAst 300 f/3.8 Optical Tube Assembly

    Officina Stellare - RiFAst 300 f/3.8 Optical Tube Assembly

    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!

    ...
    Learn More
    Model#: RIFA300
    $18,900.00

  12. 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

  13. Officina Stellare Pro RC 800 f/8 Ritchey Chrétien Astrograph

    Officina Stellare - Pro RC 800 f/8 Ritchey Chrétien Astrograph

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate to Pyrex tot Sitall and other low expansion ceramic glass.

    ...
    Learn More
    Model#: PRC800
    $178,875.00

  14. Officina Stellare Pro RC 700 f/8 Ritchey Chrétien Astrograph

    Officina Stellare - Pro RC 700 f/8 Ritchey Chrétien Astrograph

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate to Pyrex tot Sitall and other low expansion ceramic glass.

    ...
    Learn More
    Model#: PRC700
    $117,000.00

  15. Officina Stellare Pro RC 600 f/8 Ritchey Chrétien Astrograph

    Officina Stellare - Pro RC 600 f/8 Ritchey Chrétien Astrograph

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate to Pyrex tot Sitall and other low expansion ceramic glass.

    ...
    Learn More
    Model#: PRC600
    $79,500.00

  16. Officina Stellare - Pro RC 500 f/8 Ritchey Chrétien Astrograph

    Officina Stellare - Pro RC 500 f/8 Ritchey Chrétien Astrograph

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate to Pyrex tot Sitall and other low expansion ceramic glass.

    ...
    Learn More
    Model#: PRC500
    $57,510.00

  17. Officina Stellare Pro RC 400 f/8 Ritchey Chrétien Astrograph

    Officina Stellare - Pro RC 400 f/8 Ritchey Chrétien Astrograph

    The Officina Stellare Pro RC Series telescopes are made of some of the best quality optics including but not limited to, homogenous blanks of certified origin chosen between borosilicate to Pyrex tot Sitall and other low expansion ceramic glass.

    ...
    Learn More
    Model#: PRC400
    $38,475.00

  18. 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

  19. 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

  20. 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

Items 81 to 100 of 168 total

per page
Page:
  1. 5

Set Ascending Direction