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 $599.00Backorder Available
- Most accurate way to guide – improved accuracy compared to using a separate guide scope
- 12.5 mm multi-coated prism with aluminized backing for maximum reflectivity and illumination to the autoguider
- Fixed-orientation helical focuser for easy, smooth and accurate autoguider focus
- 48mm clear aperture supports full frame cameras without vignetting
- Includes adapters with the correct spacing for DSLR cameras, Nightscape CCD and other popular astroimaging cameras
- Ideal for Schmidt- Cassegrain and EdgeHD telescopes
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AUD $2,185.00Backorder Available
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AUD $49.99Backorder Available
- Create an extra auxiliary port on your Celestron computerized mount with this AUX Port Splitter
- Two auxiliary ports are required to use accessories like the Celestron StarSense AutoAlign on telescopes with only one built-in AUX port
- Adapter has two 6-pin auxiliary outputs and one 6-pin input
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AUD $194.99Backorder Available
- Quality X-Cel LX 2x Barlow doubles the magnification of any 1.25” eyepiece
- 3-element apochromatic, fully multi-coated optics offer up bright, sharp images
- A rubber grip helps to avoid accidental drops
- Barrel is threaded to accept standard 1.25” filters
- A brass compression ring holds the eyepiece firmly in place
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AUD $194.99Backorder Available
- Quality X-Cel LX 3x Barlow triples the magnification of any 1.25” eyepiece, perfect for owners of fast, short focal length telescopes
- 3-element apochromatic, fully multi-coated optics offer up bright, sharp images with excellent color correction
- A rubber grip helps to avoid accidental drops
- Barrel is threaded to accept standard 1.25” filters
- A brass compression ring holds eyepiece firmly in place
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AUD $999.00Backorder Available
- Celestron's HD Pro Wedge is designed to support our fork mounted Schmidt Cassegrain Telescopes up to 11"
- The HD Pro Wedge provides a heavy duty, stable platform that is perfect for astroimaging and guarantees minimal vibration
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AUD $4,499.00Backorder Available
- Air-spaced triplet optical design
- Japanese made Hoya FCD100 optics
- Advanced chromatic aberration correction
- ED glass
- EMD enhanced multi-layer deposition
- Dual-speed focuser
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AUD $749.00Backorder Available
- The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10
- 4-element lens design
- Maintains similar flat-field performance as native EdgeHD optical design
- Increases field of view by 43% (double by area) to better capture wide field images
- Optimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras
- Provides generous 105 mm back focus to accomodate additional accessories and a wide variety of cameras
- Compatible with EdgeHD 800 T-Adapter
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AUD $2,199.00Backorder Available
- The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1100 one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object
- 5-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
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AUD $19.00Backorder Available
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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
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