Telescopes & Astronomy
Beginner Telescopes
Buying your first telescope? Browse our curated selection of beginner telescopes.
Shop by Use
What will you use your telescope for? Explore the many uses of different types of telescopes.
Shop by Type
Choose your telescope by optical design or learn more about the different types of telescopes.
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AUD $39.00In Stock
T-ring with M42 thread Learn More -
AUD $19.00In Stock
The Sirius 2" Parfocal Ring eliminates the need to refocus your telescope every time you swap eyepieces. Simply lock the ring onto each eyepiece barrel at its precise focus point, and enjoy seamless, shake-free transitions between magnifications during your observing sessions. It's also ideal for astrophotography, allowing you to match your calibrating eyepiece's focus to your camera for fast, accurate results.
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AUD $15.00In Stock
The Sirius 1.25 Inch Parfocal Ring eliminates the need to refocus your telescope every time you swap eyepieces. Simply lock the ring onto each eyepiece barrel at its precise focus point, and enjoy seamless transitions between magnifications during visual observing or astrophotography sessions. It's a simple, affordable upgrade that saves valuable time at the eyepiece.
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AUD $84.99In Stock
- Fits telescopes with 1.25” focusers or visual backs, 90° viewing angle, best for observing objects overhead
- Accepts standard 1.25” eyepieces, Barlow lenses, and other accessories with a 1.25” insert barrel
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AUD $54.99In Stock
- This Celestron T-Adapter connects a DSLR camera to a NexStar 4SE or C90 spotting scope for prime focus photography
- Threads onto the rear cell for secure, wiggle-free connection
- T-threads accept camera brand specific T-Ring (sold separately)
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AUD $39.00In Stock
The Sirius Optics Plossl 15mm eyepiece delivers a generous 50°+ apparent field of view, making it a versatile choice for both deep-sky and planetary observation. Its classic symmetrical doublet design offers sharp, well-corrected views in any 1.25-inch focuser, while the 15mm focal length provides comfortable eye relief for extended viewing sessions.
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AUD $39.00In Stock
- For use with 2” eyepieces.
- One of the essential eyepiece filters for visual astronomy.
- Reduce glare from bright objects such as the Moon, Venus, and Jupiter.
- Accentuate subtle detail for the Moon and planets
- Polar ice caps of Mars in large telescopes
- Limb hazes and terminator clouds of Mars
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AUD $59.00In Stock
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AUD $19.00In Stock
The Sirius Optics Colour Filter No. 56 Light Green is a versatile 1.25" eyepiece filter designed to enhance planetary and lunar detail in telescopes up to 6" in aperture. With 53% light transmission, it boosts contrast of Martian polar caps, Jupiter's Great Red Spot, Venusian cloud patterns, and subtle lunar features, making it an excellent all-round choice for planetary observers.
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AUD $39.90In Stock
The saxon 5x24 Finderscope with Bracket will help you align your telecope to the object you're looking for.
Spend some time with the saxon 5x24 Finderscope with Bracket so you can spend more time observing.
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Why buy from Sirius Optics
Queensland's largest telescope showroom and warehouse
Run by astronomers and nature lovers, not sales people
Expert advice and lessons
Secure checkout with multiple payment options
30 day returns (T&Cs apply)
