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 $20.00In Stock
Getting your back-focus distance right is essential for sharp, well-corrected astrophotography and sometimes you need more than thin shims to bridge the gap. This M48 x 0.75mm aluminium alloy spacer ring provides 35mm of solid, threaded spacing to help you build out your imaging train with precision. Also available in various sizes to suit your specific setup requirements.
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AUD $199.00In Stock
Highest quality 2-inch Dielectric mirror diagonal with 99% reflectivity. Diagonal comes with 1.25-inch adapter and SCT adapter.
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AUD $29.00In Stock
90 Degree Mirror Diagonal (Plastic)
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AUD $19.00In Stock
The Sirius Vixen Dovetail Bar 12cm provides a secure and reliable mounting solution for your telescope, allowing quick attachment and detachment from Vixen-style dovetail mounts. Crafted from durable materials for long-lasting performance, this compact 12cm bar is ideal for smaller optical tubes and ensures a stable connection for smooth, worry-free observing sessions.
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AUD $59.00In 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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AUD $39.00In Stock
Finderscope shoe for finderscopes and guidescopes with Vixen-style dovetails. Learn More -
AUD $49.00In Stock
Wide angle, fully multi-coated Learn More -
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AUD $49.00In Stock
The Sirius 2 inch to 1.25 inch Locking Adapter lets you securely use your 1.25" eyepieces and accessories in any 2" focuser, thanks to its reliable twist-lock mechanism that prevents slipping and ensures a firm hold. It's an essential addition for any astronomer looking to expand their eyepiece compatibility without sacrificing stability.
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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)
