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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. PrimaLuceLab AIRY 65mm Quadriplet Apochromatic Refractor

    PrimaLuceLab - AIRY 65mm Quadriplet Apochromatic Refractor with Field Flattener

    AIRY APO65F is a little and compact apochromatic refractor tube with 65mm diameter and 420mm focal length making it excellent for taking long exposures due to its quadruplet optics (FPL - 53)

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    (48 States)
    Model#: APO65F
    $999.95

  2. Explore Scientific - 208MM NEWTONIAN F/3.9 WITH CARBON FIBER TUBE

    Explore Scientific - 208MM NEWTONIAN F/3.9 WITH CARBON FIBER TUBE

    Explore Scientific - 208MM NEWTONIAN F/3.9 WITH CARBON FIBER TUBE

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    (48 States)
    Model#: ES-208CF
    $799.95

  3. Hutech 77EDII OTA (black)

    Hutech - 77EDII OTA (black)

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    (48 States)
    Model#: 6279
    $895.00

  4. Hutech 67FL Telephoto Set (black) *Camera NOT Included

    Hutech - 67FL Telephoto Set (black)

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    (48 States)
    Model#: 6268
    $1,050.00

  5. Hutech 55FL Telephoto Lens Set

    Hutech - 55FL Telephoto Lens Set

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    (48 States)
    Model#: 6255
    $750.00

  6. Celestron EdgeHD 1100 11"  Optical Tube Assembly - DEMO

    Celestron - EdgeHD 1100 11" Optical Tube Assembly - Full Factory Warranty - OPEN BOX

    EdgeHD optical system consists of a zero power corrector plate, a spherical primary mirror, and a secondary mirror along with a set of field flattening lenses integrated into the baffle.....

    NOTE: This is a demo version.

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    (48 States)
    Model#: 91050-XLT-OPEN

    Regular Price: $3,399.00

    Special Price: $2,650.00

  7. Celestron EdgeHD 1400  14" Optical Tube Assembly

    Celestron - EdgeHD 1400 14" Optical Tube Assembly - USED

    The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images.

    NOTE: This is a used version.

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    (48 States)
    Model#: u91060-xlt
    $4,995.00

  8. DayStar Filters SolaREDi 66mm Dedicated Solar Telescope Prominence

    DayStar Filters - SolaREDi 66mm Dedicated Solar Telescope Prominence

    The DayStar Instrument SolaREDi 66 Solar Telescope is a state of the art designed solar instrument specifically targeted for observing Hydrogen Alpha wavelength with the 2.3X telecentric barlow lens.

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    (48 States)
    Model#: DSR66P

    Regular Price: $1,995.00

    Special Price: $1,295.00

  9. 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.

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    Model#: RILA400SGA
    $20,778.26

  10. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 800 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    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!

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    Model#: RIFA800CGC
    $186,169.26

  11. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 800 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    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!

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    Model#: RIFA800SGA
    $146,193.68

  12. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 700 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    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!

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    Model#: RIFA700CGC
    $125,141.54

  13. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 700 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    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!

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    Model#: RIFA700SGA
    $82,312.82

  14. Officina Stellare RIFAst 600 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    Officina Stellare - RIFAst 600 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    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!

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    Model#: RIFA600CGC
    $79,693.20

  15. Officina Stellare RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 600 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    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!

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    Model#: RIFA600SGA
    $62,358.00

  16. Officina Stellare RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 500 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    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!

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    Model#: RIFA500CGC
    $54,891.00

  17. Officina Stellare RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 500 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    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!

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    Model#: RIFA500SGA
    $45,441.00

  18. Officina Stellare RIFAst 400 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 400 f/3.8 Ceramic Glass Full-Carbon Optical Tube

    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!

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    Model#: RIFA400CGC
    $31,978.80

  19. Officina Stellare RIFAst 400 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    Officina Stellare - RIFAst 400 f/3.8 Standard Glass Aluminum-Carbon Optical Tube

    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!

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    Model#: RIFA400SGA
    $24,435.00

  20. Officina Stellare - Pro RC 800 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    Officina Stellare - Pro RC 800 f/8 Ceramic Glass Full Carbon Ritchey Chrétien Optical Tube

    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 glass.

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    Model#: PRC800CGC
    $171,460.80

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