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 15mm 68 Degree Long Eye Relief Eyepiece
    AUD $99.00

    In Stock

    The Sirius Optics 15mm 68° WALER eyepiece delivers a wide-angle field of view with generous long eye relief, making it ideal for comfortable extended viewing sessions—especially for eyeglass wearers. Enjoy sharp, immersive views without the eye placement sensitivity common in shorter focal length designs.

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  2. Sirius Optics 20mm 68 Degree Long Eye Relief Eyepiece
  3. Sirius Optics Plossl 40mm Eyepiece 1.25 Inch
  4. Sirius Optics Plossl 15mm Eyepiece 1.25 Inch
  5. Sirius 1.25 Inch Parfocal Ring
    AUD $15.00

    In Stock

  6. Sirius Optics 6mm 68 Degree Long Eye Relief Eyepiece
  7. Sirius 3x Barlow Fully Multi-Coated with M42 Thread
    AUD $59.00

    In Stock

    The Sirius 3x Barlow lens triples your telescope's magnification, letting you explore lunar craters and planetary details with stunning clarity. Its fully multi-coated, 3-element apochromatic design minimizes chromatic aberration for crisp, sharp images, while the built-in M42 thread doubles as a T-adapter for easy DSLR or SLR camera attachment.

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  8. Sirius Optics 70 Deg 20mm Eyepiece 1.25 Inch
  9. Sirius Optics Plossl 12.5mm Eyepiece 1.25 Inch
  10. Sirius Optics Plossl 30mm Eyepiece 1.25 Inch

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