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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. Mewlon 250 OTA

    Takahashi - Mewlon 250 Dall-Kirkham OTA - (BRC-250 Double Ring Tube Holder)

    The Mewlon combines refractor-like performance in a larger folded optic reflector design.The 250 optical tube assembly has 9.8" of aperture and a focal ratio of 12.

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    (48 States)
    Model#: TLK2501
    $7,895.00

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