Highest powered astronomy binoculars we have tested — now $140 cheaper this Black Friday weekend

If you don’t want to drag a telescope to your dark sky spot for stargazing, then the Celestron Skymaster 25×100 binoculars are the perfect option. With a huge $140 saving on Amazon for Black Friday weekend, now would be a great time to buy, as they are the cheapest they have been all year.

You can get the Celestron Skymaster 25×100 binoculars on sale right now at Amazon for $380.

They have a huge 100mm objective lens which lets in a huge amount of light and is perfect for dim night sky objects like star clusters, galaxies and nebulas. You will need a tripod for stable views because the magnification is so high, but they are a great option for budget high-magnification stargazing, no matter where you are. We gave them four stars in our Celestron Skymaster 25×100 binoculars review for their high-power magnification and great contrasted views.

Reviewed by

Reviewed by

Jase Parnell-Brookes

Jase Parnell-Brookes is the Managing Editor for e-commerce for Space and Live Science. Previously the Channel Editor for Cameras and Skywatching at Space, Jase has been an editor and contributing expert across a wide range of publications since 2010. Based in the UK, they are also an award-winning photographer and educator winning the Gold Prize award in the Nikon Photo Contest 2018/19 and named Digital Photographer of the Year in 2014. Since joining Space.com, they have reviewed a huge range of skywatching optics, including telescopes, binoculars and image-stabilized binoculars.

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The Celestron Skymaster 25×100 binoculars are great budget astronomy binoculars that make for an alternative to a telescope. They have a massive 25x magnification which brings you right up close to galaxies, stars and star clusters.

Views from these binoculars are akin to looking through two separate telescopes and therefore bring you super immersive and detailed views that you wouldn’t get from a telescope. The large 100mm objective lenses are unheard of in binoculars and allow a ridiculous amount of light through, making them perfect for dim deep space subjects, which otherwise might be harder to see with smaller objective lenses.

This deal brings their price to the lowest they have been all year and could be a great opportunity for someone who wants to get closer views of the night sky without needing to learn about or buy a telescope. They are perfect for family and group observation sessions, as you can set them up on a tripod and have different people look through them at your selected target. If these don’t entice you, we have a range of skywatching deals available on our Black Friday hub, with up-to-date prices.

Key features: 25x magnification, 100mm objective lens diameter, 3-degree field-of-view, 15mm eye relief, 9 lbs 12 oz weight.

Price history: The Celestron Skymaster 25×100 binoculars usually retail for $520 but they briefly dropped to $389 in January 2025. This deal from Amazon brings them down to $380, their cheapest price all year.

Price comparison: Amazon: $380 | BHPhotoVideo: $380 | Adorama: $520

Reviews consensus: In our Celestron Skymaster 25×100 binoculars review, we gave them four stars for their high magnification, including a tripod adapter and views with great clarity and contrast. Plus, we included them in our best binoculars for long-distance viewing guide thanks to their high magnification.

Space: ★★★★

Featured in guides: Best binoculars, best binoculars for long-distance viewing

✅ Buy it if: You want a powerful pair of astronomy binoculars that have the strongest magnification on the market and want binocular views akin to looking through two telescopes.

❌ Don’t buy it if: You are looking for a lightweight pair that can be used without a tripod and is better for casual stargazing. For a great, affordable stargazing pair, try the Celestron Nature DX 12×56 binoculars, also on sale for Black Friday.

Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more.