Binoculars & Monoculars
Binoculars and Monoculars
With so many binoculars to choose from, it can get overwhelming. At Sirius Optics, we are here to help you choose the right one for your needs. So how should you choose binoculars or monoculars? It really comes down to budget, personal preference, and your needs. We are here to help. Come visit our showroom, talk to our staff, and try out a few pairs, or just give us a call. We also have a 30-day return policy (for store credit) for binoculars if you find that the pair you’ve bought it doesn’t suit you.
The Basics
What do the numbers such as 8x42, 10x42, 10x50, 10-30x50 etc. on binoculars mean? The first number before “x” indicates magnification or range of magnification. The second number tells you the size of the objective lens in front in millimetres. 8x42 binos therefore has a magnification of 8 times, and an objective lens 42mm in diameter. Generally, the bigger the objective lens, the brighter the view will be, but the binos will also be bigger and heavier.
Other Features & What to Consider
As for other features, most binos today are waterproof and fog-proof, making it suitable for wet and humid conditions. The size and weight of the binoculars is also an important factor for many people. Those that are larger (50mm and above) often tend to get too heavy to comfortably hold for long periods of time. There are binoculars for specific purposes too. For example, some marine binoculars can float and have built-in compasses.
MonocularS
Some people call monoculars "mini telescopes", and sometimes we call them “half a binocular”, but there is nothing half as bad about them. They are super compact, easy, and fun to use. Some monoculars have special features such as night vision or even automatic bird/wildlife identification.
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AUD $579.00In Stock
Many consider the 10x binocular to be the sweet spot when it comes to glassing. It offers enough magnification for clear identification in wide-open spaces, and enough field of view for tight areas, all while remaining compact enough to take everywhere. Learn More -
AUD $499.99In Stock
- 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 $499.00In Stock
Close the gap quicker with the BX®-1 McKenzie™ HD 12x50mm. The increased magnification is ideal for wide-open spaces and picking out the smallest details, while the 50mm objective and HD performance let in more light, making it perfect for low-light conditions. Learn More -
AUD $499.00In Stock
Incredible zoom versatility and extreme viewing power
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AUD $449.00In Stock
- 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 $399.00In Stock
You'll be blown away by what you can see with these extra large aperture saxon 30x80 Night Sky Wateproof Binoculars!
These binoculars comes with 80mm objective lens with anti-reflection coatings, BaK-4 prism, fully multi-coated lens, built-in tripod mount and a center stabiliser rod to help you catch thousands of stars in your sight.
Strong and durable, the rubber armouring provides a secure and comfortable grip, making these binoculars perfect to use both indoors and outdoors.
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AUD $374.99In Stock
- Celestron’s legendary SkyMaster binoculars get an upgrade with ED objective lenses for superior images virtually free of chromatic aberration with lifelike color, increased resolution, and improved contrast
- Large, 50mm objective lenses offer excellent light-gathering ability—perfect for astronomy
- Threaded eyepieces accept all standard 1.25” astronomical eyepiece filters to bring out details or reduce the effects of light pollution
- BaK-4 prisms and fully multi-coated optics with XLT coatings boost light transmission through the optical path for brighter, more detailed images
- The widely spaced objective lenses of the Porro prism optical design provide an enhanced 3-D view
- Eyeglass-friendly with generous eye relief and padded twist-up eyecups
- Durable rubber-armored housing with improved ergonomics for comfortable use in the field
- Tripod-adaptable for extended viewing sessions
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AUD $269.00In Stock
- 25x 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
- 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 $265.00In Stock
- 100% Waterproof and Fogproof
- Armor Coated
- BAK 4 Prisms
- Central Focus Dial
- Diopter Focus
- Fully Multi-coated Lens System
- Inverted Porro Prism Design
- Proprietary Nitrogen Fill Process
- Twist Up Eyecups
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AUD $259.00In Stock
- 100% Waterproof and Fogproof
- Armor Coated
- BAK 4 Prisms
- Central Focus Dial
- Diopter Focus
- Ergonomic Design
- Fully Multi-coated Lens System
- Inverted Porro Prism Design
- Proprietary Nitrogen Fill Process
- Twist Up Eyecups
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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)
