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. saxon 80/400 Pioneer Refractor OTA
    AUD $249.00

    In Stock

    This short-tube refractor telescope has wide field views, thanks to its achromatic objective lens of 80mm and focal length of 400mm.

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  2. Skywatcher 80/400 Short Tube Achromatic Refractor OTA
    AUD $249.00

    Backorder Available

    Out of stock

    Tube and Finder only. Suitable for terrestrial viewing (with a correct image diagonal) or for use as a guidescope on imaging set ups.

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  3. saxon 90125 Observatory 90mm Cassegrain Telescope OTA
    AUD $399.00

    In Stock

    Everyone loves a good mix and match so we can't see a reason why it doesn't apply to telescopes as well. Grab the saxon 90125 Observatory Cassegrain Telescope and mount it with an existing (or new) mount and tripod.

    This telescope comes with the same great features as its 90125EQ counterpart, with an aperture of 90mm and a focal length of 1250mm. The compact and portable tube design means it's easy to store away when you're not outdoors observing planets and star clusters at night and terrestrial objects during the day.

    Intermediate and advanced observers alike will enjoy the flexibility the saxon 90125 Observatory Cassegrain Telescope provides.

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  4. Sky-Watcher BD 102mm Refractor OTA
    AUD $439.00

    Backorder Available

    Out of stock

    • Generous 102mm aperture – 200x more light than naked eye!
    • Lightweight, portable and quick to set up
    • For terrestrial & deep-sky observation
    • Multi-coated achromatic objective lens
    • Aluminum optical tube with dew cap/sunshade
    • Adjustable objective lens cell
    • Smooth 2″ rack & pinion focuser with 1.25″ adapter
    • Superior design and craftsmanship
    • Tripod not included
    • 5 Years Sky-Watcher Limited Warranty
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  5. saxon 10213 Observatory 102mm Cassegrain Telescope OTA
    AUD $449.00

    Backorder Available

    Out of stock

    The saxon 10213 Observatory Cassegrain Telescope is a scope that gives you the space you need in the home and outdoors.

    This telescope features an aperture of 102mm and a massive focal length of 1300mm in a short 4" optical tube. Use this scope for zooming in on wildlife and landscape during the day, then take it out for a spin at night viewing Saturn's rings and Jupiter's moons.

    Easy to assemble and portable enough to take anywhere, the saxon 10213 Observatory Cassegrain Telescope makes a great addition to an astronomer's home.

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  6. Sky-Watcher 130/650 Dual Speed Ota Photo Reflector
    AUD $499.00

    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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  7. Sky-Watcher BD 120mm Refractor OTA
    AUD $599.00

    Backorder Available

    Out of stock

    • Generous 120mm aperture – 38% more light than 102mm
    • Lightweight, portable and quick to set up
    • For terrestrial & deep-sky observation
    • Multi-coated achromatic objective lens
    • Aluminum optical tube with dew cap/sunshade
    • Adjustable objective lens cell
    • Smooth 2″ rack & pinion focuser with 1.25″ adapter
    • Superior design and craftsmanship
    • Tripod not included
    • 5 Years Sky-Watcher Limited Warranty
    Learn More
  8. Sky-Watcher BD Maksutov Cassegrain 127mm OTA
    AUD $695.00

    Backorder Available

    Out of stock

    • Compact dimensions, ideal for transportation
    • Diffraction limited optics
    • Close optical tube to minimise the turbulence effect
    • Integrated Vixen Style Bar
    • Limited Image Shift During Focusing
    • 5 years Sky-Watcher limited warranty
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  9. Sky-Watcher Bd Newtonian 150mm Reflector Ota
    AUD $699.00

    In Stock

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

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  10. saxon 150DS 6in Astrophotography Newtonian OTA
    AUD $699.00

    In Stock

    You expect nothing less than crystal-clear images in your scope, but what are you going to do with the mount and tripod you already have? Mount it with the saxon 150DS Astrophotography Newtonian Telescope, that's what!

    Combined with the aperture of 150mm and focal length of 750mm, this scope is great for prime-focus photography. Higher quality images can be achieved with the optional coma corrector.

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