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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. Opticstar Optimum One ED80S Gold OTA with PX-75C Planetary Camera - Color

    Opticstar - "Optimum One" Series - ED80S Gold + PX-75C Colour Planetary Camera

    The Opticstar ED80S short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a high quality 80mm apochromatic doublet that is fully broad-band multicoated to ensure maximum light transmission.

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    Model#: ED80S + PX-75C

    Regular Price: $1,298.00

    Special Price: $1,233.10

  2. Opticstar - "Optimum One" Series - ED80S Gold 80mm ED Fluorite Doublet Refractor with SL-131C Colour Planetary Camera

    Opticstar - "Optimum One" Series - ED80S Gold 80mm ED Fluorite Doublet Refractor with SL-131C Colour Planetary Camera

    The Opticstar ED80S short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope.

    ...
    Learn More
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    (48 States)
    Model#: ED80S + SL-131C

    Regular Price: $998.00

    Special Price: $948.10

  3. Opticstar Optimum One ED80S Gold OTA with PX-75C Planetary Camera - Color

    Opticstar - "Optimum One" Series - ED80S Gold + PX-75M Colour Planetary Camera

    The Opticstar ED80S short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a high quality 80mm apochromatic doublet that is fully broad-band multicoated to ensure maximum light transmission.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: ED80S + PX-75M

    Regular Price: $1,448.00

    Special Price: $1,375.60

  4. Opticstar - "Optimum One" Series - ED80S Gold + PL-131M Monochrome Planetary Camera

    Opticstar - "Optimum One" Series - ED80S Gold + PL-131M Monochrome Planetary Camera

    The Opticstar ED80S short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a high quality 80mm apochromatic doublet that is fully broad-band multicoated to ensure maximum light transmission.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: ED80S + PL-131M

    Regular Price: $1,148.00

    Special Price: $1,090.60

4 Item(s)

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