With a massive 100mm objective lens and 25x magnification, the Celestron SkyMaster 25×100 binoculars are great for astronomy and tripod use. Reviews by Matt Morris, published June 4, 2025
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(Photo: © Matt Morris) Live Science Verdict
The SkyMasters were heavy enough to make them difficult to use by hand, but when mounted on a sturdy tripod, they provided crisp, bright images of nighttime objects. They were able to reveal stars invisible to the naked eye, sometimes lifting the black veil from the sky to reveal a surprising wealth of detail.
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Prismatic glass BaK-4
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Significant 25x magnification
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100mm lens
Cons
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Heavy – 140 oz (3969 g)
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The tripod mounting tube often slipped off
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No central focusing wheel
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The Celestron SkyMaster 25×100 binoculars provide great views of the Moon and allow you to observe the planets, making them one of the best binoculars and a great choice for astronomy.
They are quite heavy, so a sturdy tripod is essential. The mounting tube has a movable screw that hooks into the tube and can be tightened. We found that it often did not lock completely in certain places, leaving the binoculars free to move from their mounted position, but once properly mounted, the SkyMasters are truly impressive.
- Celestron SkyMaster 25×100 (Black) on Amazon for $474.95
The 100mm lens lets in plenty of light, even in the early hours, when stargazing in the local dark sky. Observing the Moon was particularly spectacular, with craters shown in great color and detail. With 25x magnification, more distant objects are harder to see, but we found that SkyMasters revealed hidden stars that are not visible to the naked eye.
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