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 $29.00In Stock
T-ring with M42 thread Learn More -
AUD $84.99In Stock
- A great accessory for daytime terrestrial viewing with your telescope
- This 1.25” diagonal produces right side up and left-to-right correct images when used with refractors and catadioptric (Schmidt-Cassegrain) telescopes
- Inserts into 1.25” focusers or visual backs; accepts standard 1.25” eyepieces
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AUD $54.99In Stock
- Power your Celestron computerized telescope from your car battery or a portable 12V DC power supply.
- Barrel connector plugs into the 12V input jack on the telescope drive base.
- Power connector fits standard automobile cigarette lighter receptacles, also found on portable 12V battery packs like the Celestron PowerTank.
- 25-foot cord for lots of reach.
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AUD $15.00In Stock
M42 x 0.75mm Aluminium Alloy Extension Spacer Ring for telescope photography. This 3mm spacer can help you achieve precise back-focus spacing in your imaging train.
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AUD $19.50In Stock
- An indispensable reference guide for observing the "Red Planet"
- Identifies Martian features using classical albedo and modern nomenclature
- Lists all opposition and conjunction events from 2014 to 2020
- Recommends best filters for visual observation and astrophotography of Mars
- Plastic-laminated for durability, the Mars Map measures 25.25" x 11" when fully unfolded, and folds up to 8.5" x 11" for easy portability
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AUD $20.00In Stock
Enhances:
- Lunar detail
- Polar ice caps of Mars in large telescopes
- Polar regions on Saturn
- Limb hazes and terminator clouds of Mars
- Clouds and atmospheric haze on Venus, reduces glare
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AUD $19.00In Stock
- For 1.25" eyepieces
Enhances:
- Dust storms, surface plains and Maria on Mars
- Cloud belts, polar regions, loops, festoons, and ovals on Jupiter
- Cloud belts and polar regions on Saturn
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AUD $60.00In Stock
The Sirius Optics Cheshire Collimator Long is a precision 1.25" collimating eyepiece designed to help you achieve perfect optical alignment on both refractor and Newtonian reflector telescopes. Featuring an angled reflective surface with a central sight hole and an integrated crosshair for added accuracy, it makes collimation straightforward and reliable. A comfortable rubber eyeshield ensures ease of use during extended adjustment sessions.
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AUD $29.00In Stock
M42 threaded T-adapter with 1.25" barrell.
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AUD $39.00In Stock
The Sirius Optics Nikon T-Ring features a standard M42 thread that lets you easily connect your Nikon DSLR camera to any telescope equipped with a T-adapter, making it an essential accessory for capturing stunning astrophotography images.
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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)
