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Binoculars & Monoculars

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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  1. Leupold BX-1 Mckenzie HD 12x50 Shadow Grey Binoculars
    AUD $499.00

    In 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
  2. Celestron SkyMaster Pro 15x70 Porro Prism Binoculars
    AUD $499.99

    In 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
    Learn More
  3. Leupold BX-2 Alpine HD 10x42 Roof Shadow Grey Binoculars
    AUD $579.00

    In 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
  4. Leupold BX-2 Alpine HD 12x52 Roof Prism Shadow Grey Binoculars
    AUD $599.00

    In Stock

    While 10x42 binoculars are tried-and-true, sometimes you just need more light. By moving up to the BX®-2 Alpine® HD 12x52mm, you increase the amount of light getting to your eye, which is great for low-light conditions. Learn More
  5. Celestron SkyMaster Pro 20x80 Porro Prism Binoculars
    AUD $599.99

    In Stock

    • 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
    Learn More
  6. Celestron SkyMaster Pro ED 15x70 Binocular
    AUD $624.99

    In 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, 70mm 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
    Learn More
  7. Celestron TrailSeeker ED 8x32mm Roof Prism Binoculars
    AUD $624.99

    In Stock

    • ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and contrast
    • Fully multi-coated optics for maximum light transmission through the optical path
    • Phase and dielectric coated BaK-4 prisms for vivid, true-to-life colors
    • Wide field of view and 6.5' close focus
    • Tripod adaptable
    Learn More
  8. Celestron TrailSeeker ED 10X42 Roof Prism Binoculars
    AUD $649.99

    In Stock

    • ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and contrast
    • Fully multi-coated optics for maximum light transmission through the optical path
    • Phase and dielectric coated BaK-4 prisms for vivid, true-to-life colors
    • Wide field of view and 8.2' close focus
    • Tripod adaptable
    Learn More
  9. Celestron TrailSeeker ED 10x32mm Roof Prism Binocular
    AUD $649.99

    In Stock

    • ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and contrast
    • Fully multi-coated optics for maximum light transmission through the optical path
    • Phase and dielectric coated BaK-4 prisms for vivid, true-to-life colors
    • Wide field of view and 8.2' close focus
    • Tripod adaptable
    Learn More
  10. Celestron TrailSeeker ED 8x42 Roof Prism Binoculars
    AUD $699.99

    In Stock

    • ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and contrast
    • Fully multi-coated optics for maximum light transmission through the optical path
    • Phase and dielectric coated BaK-4 prisms for vivid, true-to-life colors
    • Tripod adaptable
    Learn More

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