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Optical Tube Assemblies

Just the telescope tube without the mount. Build your own custom setup or upgrade your existing one.

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  1. Celestron 14 Inch EdgeHD OTA
    AUD $13,749.00

    In Stock

    • Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces
    • Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
    • Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories
    • Celestron’s premium StarBright XLT coatings provide maximum light transmission
    • A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included
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  2. Sky-Watcher ED50 EvoGuide Guidescope V2
    AUD $499.00

    Backorder Available

    Out of stock

    Autoguiding has never been easier than with the Sky-Watcher EVOGuide 50ED V2 Guidescope.

     

    - Extra-Low Dispersion (ED) Glass

    - Dovetail Vixen Mini Bar

    - Use as either a Finderscope, a Guidescope or an Independent Wide-Field Imaging Telescope

    - Helical Focuser

    - Contains T2 Thread to Fit Standard Guide Cameras

    - Small & Compact

    - Sky-Watcher 5-Year Warranty

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  3. Sky-Watcher 130/650 Dual Speed Ota Photo Reflector
    AUD $529.00

    Backorder Available

    Out of stock

    • 650mm f/5 Newtonian Reflector
    • Diffraction limited 130mm parabolic primary mirror
    • Ideal fast telescope for astrophotography
    • Shortened tube length – lightweight and portable for its power
    • Feature packed at a great price
    • A great choice for beginner stargazers and veteran enthusiasts
    • Tube rings and dovetail bar included
    • Optical tube only – tripod is not included
    • 5 years Sky-Watcher limited warranty
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  4. Sky-Watcher Black Diamond Newtonian 150mm Reflector Ota
    AUD $599.00

    Backorder Available

    Out of stock

    The new Sky-Watcher BKP 150 OTAW Dual Speed incorporates superb mirror-set with two significant advantages

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  5. Celestron C5 Spotting Scope
    AUD $1,199.00

    Backorder Available

    Out of stock

    • 5" Schmidt-Cassegrain Optical Design
    • StarBright XLT Coatings
    • 25 mm (50x) Eyepiece
    • 45° Erect Image Diagonal
    • 6x30 Erect Image Finderscope
    • Water-Resistant Soft-Sided Case
    • Limited Lifetime Warranty

    NOTE:  For solar observing we recommend the Astrozap Glass Solar Filter (Product No. 124466) for use on this telescope.

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  6. saxon 100 ED Refractor Telescope
    AUD $1,429.00

    Backorder Available

    Out of stock

    Make the saxon 100 ED Refractor Telescope part of your astronomy journey with its quality optics and portability.

    With an aperture of 100mm and a focal length of 900mm, this telecope is perfect for wide field photography of both land and sky objects. Weighing just under 4 kg, this OTA can easily be transported around and mounted on your choice of mount and tripod. 

    For a high-performing telescope at an affordable price tag, your choice has to be the saxon 100 ED Refractor Telescope

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  7. saxon 80mm Apochromatic FCD100 Air-Spaced ED Triplet Refractor Telescope
    AUD $2,299.00

    Backorder Available

    Out of stock

    • Air-spaced triplet optical design
    • Japanese made Hoya FCD100 optics
    • Advanced chromatic aberration correction
    • ED glass
    • EMD enhanced multi-layer deposition
    • Dual-speed focuser
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  8. saxon 102mm Apochromatic FCD100 Air-Spaced ED Triplet Refractor Telescope
    AUD $3,299.00

    Backorder Available

    Out of stock

    • Air-spaced triplet optical design
    • Japanese made Hoya FCD100 optics
    • Advanced chromatic aberration correction
    • ED glass
    • EMD enhanced multi-layer deposition
    • Dual-speed focuser
    Learn More
  9. C9.25 Optical Tube Assembly CGE Dovetail
    AUD $3,499.00

    Backorder Available

    Out of stock

    9.25" Schmidt-Cassegrain Optical Tube Assembley

    Aluminum Optical Tube

    Celestron's premium StarBright XLT coatings

    2350 mm focal length (f/10)

    25 mm eyepiece included (94x)

    Visual back allows for use with 1.25" accessories

    6x30 finderscope to help accurately find objects

    Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

    Includes dovetail rail compatible with CGE mount

    For customers wishing to fit solar filters, the outside OTA diameter is 272 mm.

    NOTE: For solar viewing the Astrozap Glass Solar filter (Product No. 124446) is recommended.

    Learn More
  10. Sky-Watcher BD ED120 Refractor OTA
    AUD $3,699.00

    Backorder Available

    Out of stock

    120mm ED Apochromatic Refractor OTA for astrophotography. Learn More

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