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Celestron SkyMaster 20x80 Astronomy Binoculars
The Celestron SkyMaster 20x80 Astronomy Binoculars offer powerful 20x magnification and a massive 80mm aperture for exceptionally bright, detailed views of the night sky and distant landscapes. Featuring multi-coated optics and premium BaK4 Porro prisms, they deliver sharp, high-contrast images ideal for both astronomical and terrestrial use. With a durable rubber-armoured body, tripod adaptability, and a carry case included, they’re built for serious stargazing and long-range observation.
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The Celestron SkyMaster 20x80 Astronomy Binoculars are amongst the most powerful binoculars on the market.
Perfect for stargazing on the move, these binoculars offer a serious boost in light-gathering and magnifying power. With a wide 80mm aperture and strong 20x magnification, the SkyMaster 20x80 delivers crisp, detailed views of the Moon, distant star clusters, and sweeping constellations. Whether you're at home or away from your telescope, they make a reliable and portable observing option.
Though built with astronomy in mind, these binoculars are equally suited for long-distance terrestrial viewing. From coastal landscapes to wildlife observation, the Celestron SkyMaster 20x80 adapts easily. The large aperture ensures excellent brightness even in low-light conditions—perfect for dawn, dusk, or twilight skies.
As part of the Celestron Sky Master series, the 20x80 combines exceptional optical performance with high brightness, making it one of the brightest large binoculars available today. It’s a solid choice for those wanting power and versatility in one package.
Equipped with multi-coated optics and BaK4 porro prisms, the SkyMaster 20x80 offers bright, contrast-rich views with reduced optical aberrations. Despite its size, it’s surprisingly comfortable to hold, thanks to its ergonomic body and durable rubber-armoured chassis designed for a secure, non-slip grip.
For extended viewing sessions, the SkyMaster 20x80 Binoculars can be mounted on a tripod (adapter required), and they come with a protective carry case for easy storage and transport.
Optics Central is an Authorised Retailer of Celestron. The Celestron SkyMaster 20x80 Astronomy Binoculars include coverage under the Celestron Limited Lifetime Warranty.
Full Specifications
| Prism Glass (Type) | Porro Prism (BaK-4) |
| Magnification | 20x |
| Objective Lens Diameter | 80mm |
| Focal Length of Objective Lens | 328.6mm |
| Lens Coatings | Multi-Coated |
| Exit Pupil | 4mm |
| Close Focus | 33m |
| Twilight Factor | 40 |
| Relative Brightness | 16 |
| Liming Stellar Magnitude | Ideal: 12.02 Moderate: 11.02 Poor: 10.02 |
| Linear Field of View at 1,000m | 65m |
| Angular Field of View | 3.7° |
| Eye Relief | 18mm |
| Interpupillary Distance (Max) | 72mm |
| Interpupillary Distance (Min) | 56mm |
| Dioptric Correction | -4 | +8 |
| Tripod Adaptable | Yes |
| Water-Resistant? | Yes |
| Dimensions | 22.8 x 12.0 x 32.5 cm |
| Weight | 2126g |
| Warranty | Celestron Limited Lifetime Warranty |
Recommended Accessories
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Celestron Trailseeker Fluid Pan Tripod Purchase this tripod with the Saxon Binocular Tripod Adapter to support your Binoculars. This heavy-duty tripod is capable of supporting a weight of up to 4kg. Highly recommended for prolonged observation. |
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saxon Optical Lens Cleaning Kit Keep your binoculars in top shape by protecting it from dust and debris! |
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Celestron Trailseeker Fluid Pan Tripod Purchase this tripod with the Saxon Binocular Tripod Adapter to support your Binoculars. This heavy-duty tripod is capable of supporting a weight of up to 4kg. Highly recommended for prolonged observation. |
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saxon Optical Lens Cleaning Kit Keep your binoculars in top shape by protecting it from dust and debris! |
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Why Shop Celestron from OpticsCentral?
OpticsCentral is a Premier Select Dealer for Celestron in Australia, offering expert advice, local warranty support, and access to genuine spare parts. As an authorised Celestron Premier Select Dealer, we provide local warranty support and fast turnaround on repairs—giving you peace of mind with every purchase.
About Celestron
Imagine a humble beginning – a 6-inch reflector telescope crafted by Tom Johnson for his young son. This was the spark that ignited a transformative journey. As time passed, his designs evolved into larger, more sophisticated scopes. Today, Celestron shines as an industry trailblazer, renowned for crafting precision optical equipment. From computerised marvels to traditional telescopes, binoculars, spotting scopes and more, Celestron's portfolio is a universe of possibilities. With a legacy spanning over 50 illustrious years, Celestron has earned admiration from both avid hobbyists and dedicated astronomers worldwide. But they don't rest on their laurels; innovation propels them forward. They constantly broaden their product horizons while illuminating minds through global science education initiatives. Celestron's story is one of innovation, evolution and a passion for the cosmos. Join them on this extraordinary journey of discovery and inspiration.
Product Code: 71018
| Prism Type | Porro |
|---|---|
| Prism Glass Quality | BaK-4 |
| Magnification | 20 times |
| Aperture | 80mm (3.15") |
| Glass Lens Quality | Standard |
| Field of View | 65m @ 1000m |
| Twilight Factor | 40 |
| Exit Pupil Diameter | 4mm (.15") |
| Waterproof | No |
| Fogproof | No |
| Eye Relief | 18mm (.71") |
| Dimensions | 228mm x 120mm x 325mm (9.0" x 4.7" x 12.8") |
| Weight | 2126g |
| Warranty Information | Celestron Limited Lifetime Warranty |
| Additional Specifications of Product | Water-Resistant |
| Item | Qty | |
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Celestron SkyMaster 20x80 Binoculars | 1 |
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Carrying Case | 1 |
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Rainguard | 1 |
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Objective Covers | 2 |
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Neck Strap | 1 |
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Lens Cloth | 1 |
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Instruction Manual | 1 |
Q1. What are Celestron SkyMaster binoculars best used for?
SkyMaster binoculars are designed for astronomy and long-distance terrestrial viewing. They’re ideal for observing the Moon, planets, star clusters, and distant landscapes or wildlife.
Q2. What’s the difference between SkyMaster and SkyMaster Pro?
SkyMaster Pro models feature enhanced optics with Celestron XLT coatings, improved internal components, a sturdier chassis, and often include a detachable RSR rail for attaching a red dot finderscope. Standard SkyMaster models offer excellent performance at a more affordable price.
Q3. Do I need a tripod to use SkyMaster binoculars?
For models like the 15x70 or 20x80, a tripod is recommended due to their weight and high magnification. Most SkyMaster binoculars are tripod-adaptable and include a tripod adapter.
Q4. Can I use SkyMaster binoculars during the day?
Yes. While optimised for stargazing, SkyMaster binoculars also perform well in daylight for viewing distant landscapes, boats, or wildlife.
Q5. Are they suitable for beginners in astronomy?
Absolutely. SkyMaster binoculars are a great entry point for astronomy, offering wide fields of view and ease of use without the setup complexity of a telescope.
Q6. Are SkyMaster binoculars waterproof?
Standard SkyMaster models are not waterproof, while SkyMaster Pro models are typically waterproof and nitrogen-purged, offering better protection against moisture and fogging.
Q7. How should I store them?
Keep your binoculars in a cool, dry place using the included carry case. Always store them with the lens caps on and avoid extreme temperatures or humidity.
Q8. Can I use a smartphone adapter with SkyMaster binoculars?
Yes, you can attach a smartphone adapter for basic astrophotography or to capture distant daytime scenes. Ensure the adapter fits the eyepiece size properly. We recommend the Celestron NeXYZ Smartphone Adapter.
