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 $399.00Backorder Available
- Get the Most Out of Your Origin: Enhance your Celestron Origin’s views and images of nebulae—especially from urban and suburban skies. This filter blocks light pollution, boosts image contrast, and darkens the sky background for noticeably better images.
- Nebulae Come to Life: This filter transmits only the key Hα-Hβ-OIII wavelengths from emission nebulae, making their colors “pop” from the dark background.
- Conquers Light Pollution: With this filter, you allow the “good” wavelengths of light from nebulae through but block the “bad” light pollution from reaching Origin’s sensor.
- Built for Origin’s RASA Optics: Unlike similar filters with narrower bandpasses, this filter was engineered specifically to work with Origin’s fast f/2.2 optics to allow more of the light you want while suppressing the light you don’t.
- Easy Installation: Simply remove the optical window from Origin’s filter drawer and insert the Nebula Filter. It won’t disrupt the optical path of your Origin, and no additional adapters are needed.
- Quality Construction: Constructed of Schott glass with anti-reflective coatings, this filter’s surfaces are optically flat and free from defects.
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AUD $299.00Backorder Available
- Product your Celestron Origin: This sleek, grab-and-go case for Origin’s 6” RASA telescope tube offers the ultimate protection and portability. Ideal for both storage when not in use or travelling.
- Durable triple-layer construction: Custom-designed for Celestron Origin, this bag features an ultra-durable and water-resistant 900 denier outer shell, 1.5” thick EPE foam padding, and a super-soft inner lining.
- Easy to load and unload: Multiple zippers provide instant access to the tube, making it fast and easy to set up or break down your Origin.
- Two carrying options: Use the sewn-in carry handles or the padded, adjustable shoulder strap.
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AUD $249.00Backorder Available
- 15x magnification porro prism binocular
- Large 70 mm objective lens offers maximum image brightness in low-light and long-range conditions
- Ultra sharp focus across the field of view
- Multi-Coated optics for sharp, clear views
- Suitable for terrestrial or astronomical viewing
- Protective rubber covering for ultra-firm grip
- Large center focus knob for easy focusing
- Tripod adapter included
- Long eye relief ideal for eyeglass wearers
- Carrying case included for travel and safe storage
- Limited Lifetime Warranty provides best protection and product support on the market
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AUD $319.00Backorder Available
- Lower magnification allows the user to locate a subject more easily and then zoom in for a close-up view
- Multi-coated optics enhances sharpness of detail and crispness of color
- High quality BaK-4 prisms provide higher light transmission for better viewing in low light conditions
- Large objective diameter provides a comfortable viewing aperture at high magnification levels
- Long eye relief for more comfortable for all users; essential for those wearing eyeglasses while viewing
- Diopter adjustment allows for refinement of image to correct for any differences in strength between the users own eyes
- Tripod adapter included to mount the binocular on a tripod for prolonged viewing sessions or simply for increased stability while observing
- Limited Lifetime Warranty
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AUD $449.00Backorder Available
- 20x magnification porro prism binocular
- Giant 80 mm objective lens offers maximum image brightness in low-light and long-range conditions
- Ultra sharp focus across the field of view
- Multi-Coated optics for sharp, clear views
- Suitable for terrestrial or astronomical viewing
- Protective rubber covering for ultra-firm grip
- Large center focus knob for easy focusing
- Integrated tripod adapter rod for ultra-stable tripod mounting
- Long eye relief ideal for eyeglass wearers
- Soft carrying case included for travel and safe storage
- Limited Lifetime Warranty provides best protection and product support on the market
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AUD $999.00Backorder Available
- 25x magnification porro prism binocular
- Giant 100 mm objective lens offers maximum image brightness in low-light and long-range conditions
- Ultra sharp focus across the field of view
- Individual Eyepiece Focus to ensure optimal focus position
- Multi-Coated optics for sharp, clear views
- Suitable for long-range terrestrial or astronomical viewing
- Protective rubber covering for ultra-firm grip
- Integrated tripod adapter rod for ultra-stable tripod mounting
- Long eye relief ideal for eyeglass wearers
- Deluxe padded carrying case included for travel and safe storage
- Limited Lifetime Warranty provides best protection and product support on the market
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AUD $499.99Backorder Available
- Large 70 mm objective lenses for excellent light gathering in low light conditions or for astronomical observing
- Detachable RSR rail for attaching an optional red dot finderscope
- Rubber armored for improved ergonomics and protection from every day use in the field
- Waterproof and nitrogen purged for use in all weather conditions
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AUD $599.99Backorder Available
- Large 80 mm objective lenses for excellent light gathering in low light conditions or for astronomical observing
- Detachable RSR rail for attaching an optional red dot finderscope
- Rubber armored for improved ergonomics and protection from every day use in the field
- Waterproof and nitrogen purged for use in all weather conditions
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AUD $49.99Backorder Available
- Omni eyepieces offer a quality 4-element Plössl optical design at a super affordable price
- Rubber eyecups provide comfort and increase contrast. Leave them up or fold them down when wearing eyeglasses.
- Beautiful matte aluminum barrels and blackened lens edges prevent internal reflections
- 1.25” barrels are threaded to accept filters
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AUD $89.00Backorder Available
- The Celestron Cheshire Collimation Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt-Cassegrains
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)
