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 Plossl 15mm Eyepiece 1.25 Inch
  2. Sirius 1.25 Inch Parfocal Ring
    AUD $15.00

    In Stock

  3. Sirius 2 inch Parfocal Ring
    AUD $19.00

    In Stock

  4. Sirius M42 T-Ring for DSLR Mirrorless Micro 4/3
    AUD $39.00

    In Stock

    T-ring with M42 thread Learn More
  5. Sirius M48 Female to M42 Male Adapter
    AUD $29.00

    In Stock

  6. Sirius SCT Female to M48 Male Adapter
    AUD $39.00

    In Stock

  7. Sirius Optics 6mm 68 Degree Long Eye Relief Eyepiece
  8. Sirius Optics 2 inch to 1.25 Inch Adapter Short Profile
    AUD $39.00

    In Stock

    2" to 1.25" adapter for eyepieces. Learn More
  9. Sirius Optics Budget 90 Degree Mirror Diagonal (Plastic)
  10. Micro Focuser for 50mm Guidescope 1.25 Inch
    AUD $79.00

    In Stock

    Upgrade your 50mm guidescope with this precision micro focuser, offering 10mm of smooth, fine-tuned travel for razor-sharp star focus during autoguiding sessions. Compatible with popular finderscopes from Skywatcher, Celestron, GSO, and more, it features both M42 and 1.25-inch connections to suit a wide range of guide cameras and eyepieces. A brass compression ring ensures a secure, scratch-free hold for reliable performance all night long. Use with right-angled finderscopes.

    Learn More

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