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 $129.00In Stock
- T-Adapter for 9.25, 11 & 14” EdgeHD optical tubes. It threads onto the rear cell
- This T-Adapter allows you to attach your 35 mm DSLR camera to the prime focus of your EdgeHD telescope
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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 $15.00In Stock
M42 x 0.75mm Aluminium Alloy Extension Spacer Ring for telescope photography. This 5mm spacer can help you achieve precise back-focus spacing in your imaging train.
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AUD $9.95
In Stock
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AUD $49.00Backorder Available
- USB-operated cooling fan for StarSense Explorer 10” and 12" Dobsonian and other Dobs and reflectors with a compatible fan mount
- Speeds up the cooling of the primary mirror to the ambient air temperature resulting in crisper, better-focused views in less time
- Mounts directly to the rear cell of the StarSense Explorer 10” and 12" Dobsonian telescope
- Integrated storage clip to secure the USB cable when not in use
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AUD $54.99Backorder Available
- The Celestron Universal T-Adapter connects a DSLR or SLR camera to a refractor for prime focus photography
- The adapter’s chrome barrel slides into any focuser that accepts 1.25” accessories
- T-Threads accept camera brand specific T-Ring (sold separately)
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AUD $19.00Backorder Available
This accessory allows to connect a ball head adaptor on top of the star adventurer mount. It features a 3/8″ thread.
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AUD $699.99Backorder Available
- The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25" one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object
- 4-element lens design
- Maintains similar flat-field performance as native EdgeHD optical design
- Increases field of view by 43% to better capture wide field images
- Threads directly onto the 3.25" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
- Maintains the identical back focus when used at f/10 and provides generous back focus to accommodate additional accessories and wide variety of cameras
- Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens
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
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30 day returns (T&Cs apply)
