Telescopes & Astronomy

Beginner Telescopes
Kids' Telescope

Buying your first telescope? Browse our curated selection of beginner telescopes.

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Telescope Use

What will you use your telescope for? Explore the many uses of different types of telescopes.

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Cassegrain Telescope

Choose your telescope by optical design or learn more about the different types of telescopes.

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  1. Sirius Optics 12mm Flat Field Eyepiece
    AUD $129.00

    In Stock

    The flatfield eyepieces are ideal all-rounders for deep sky and also planets with an excellent sharpness performance.

    The eyepieces have a very high quality coating and offer excellent sharpness in the field so that they are equally suitable for the deep-sky observation of nebulae and galaxies but also good for the moon and planets. The eyepieces are mutually parfocal, so that refocusing the eyepiece is not necessary.

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  2. Orion Lanthanum 4mm Eyepiece 1.25 Inch
    AUD $449.00

    In Stock

    • This 4mm focal length, 8-element telescope eyepiece will amaze you with vivid, panoramic views of the night sky
    • Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass for exceptional control of chromatic aberrations to provide true-color views with outstanding clarity
    • All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
    • Long 20mm eye relief lets eyeglass wearers enjoy the view comfortably without removing glasses
    • The fully multi-coated 4mm LHD eyepiece features a tapered 1.25" barrel which is threaded for use with 1.25" eyepiece filters
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  3. Sirius Optics 8-24mm Zoom Eyepiece 1.25 Inch
  4. Celestron Eyepiece and Filter Kit - 2 Inch
    AUD $749.00

    In Stock

    • This Celestron 2” Eyepiece and Filter Kit includes all the accessories you need to start using 2” eyepieces on your Schmidt-Cassegrain or refractor telescope
    • You’ll get a 2” Mirror Diagonal, three E-Lux 2” eyepieces, a 2” 2X Barlow Lens, five colored filters to improve observations of the planets, and a foam-fitted aluminum carry case
    • The 2” 90° Mirror Diagonal accepts 2” eyepieces, and attaches to the rear cell of SCT’s.  An adapter is included for use with refractor telescopes.
    • Celestron E-Lux eyepieces are a 3-element, fully multi-coated design.  You’ll get a 26 mm, a 32 mm, and a 40 mm, for a great choice of magnification and field of view.  Multiply your options by 2X when you use your 2” eyepieces with the included 2X Barlow.
    • The most popular planetary filters are included in this kit.  They are threaded to attach to most any 2” eyepiece or accessory.   
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  5. Sirius 5x Barlow with M42 Thread
    AUD $59.00

    In Stock

    The Sirius 5x Barlow with M42 Thread dramatically increases the magnification of your existing eyepieces, allowing you to reveal fine lunar details and planetary features like Jupiter's cloud bands with stunning clarity. Its standard M42 thread ensures easy compatibility with a wide range of telescopes and imaging setups, making it an essential addition to any astronomer's accessory kit.

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  6. Sirius Optics 9mm 68 Degree Long Eye Relief Eyepiece
  7. Sirius 60-65 Degree WA 20mm Eyepiece 1.25 Inch
    AUD $49.00

    In Stock

    Wide angle, fully multi-coated Learn More
  8. Celestron X-Cel LX 25mm Eyepiece 1.25 Inch
    AUD $164.99

    In Stock

    • X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system
    • Pop-up rubber eyeguards provide comfort and increase contrast.  Raise and lower with a simple twist.
    • A treaded rubber grip offers a no-slip grip, even with gloves on
    • 1.25” barrels are threaded to accept filters
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  9. Celestron X-Cel LX 2x Barlow Lens 1.25 Inch
    AUD $194.99

    In Stock

    • Quality X-Cel LX 2x Barlow doubles the magnification of any 1.25” eyepiece
    • 3-element apochromatic, fully multi-coated optics offer up bright, sharp images
    • A rubber grip helps to avoid accidental drops
    • Barrel is threaded to accept standard 1.25” filters
    • A brass compression ring holds the eyepiece firmly in place
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  10. Celestron X-Cel LX 18mm Eyepiece 1.25 Inch
    AUD $164.99

    In Stock

    • X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system
    • Pop-up rubber eyeguards provide comfort and increase contrast.  Raise and lower with a simple twist.
    • A treaded rubber grip offers a no-slip grip, even with gloves on
    • 1.25” barrels are threaded to accept filters
    Learn More

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