

🔭 See the universe like never before — don’t just watch stars, own the night!
The Celestron SkyMaster 25x100 mm Porro Binoculars are engineered for serious astronomy and long-distance terrestrial viewing. Featuring massive 100mm objective lenses and powerful 25x magnification, these binoculars maximize light throughput with BaK-4 prisms for bright, sharp images in low light. Designed for tripod mounting via a built-in ¼”-20 adapter, they offer stable, shake-free viewing despite their 8.6-pound weight. Rugged, water-resistant, and backed by a Limited Lifetime US Warranty, the SkyMaster is a premium choice for millennial professionals seeking immersive, high-performance optics that elevate every stargazing session.












| ASIN | B00008Y0VU |
| Best Sellers Rank | #545 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #224 in Binoculars |
| Customer Reviews | 4.3 4.3 out of 5 stars (949) |
| Date First Available | June 17, 2006 |
| Department | unisex-adult |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.6 pounds |
| Item model number | 71017 |
| Manufacturer | Celestron |
| Product Dimensions | 10.1 x 5.1 x 15.28 inches |
J**R
Well worth it.
This thing is way better than telescopes in the same price range. The range and clarity is insane. The only downside is it's weight making the smallest movements with your hands translate to what you're seeing as very shaky and unstable. Laying down or leaning back with your elbows supported can negate the earthquake effects somewhat. I would recommend placing your hands further away from your face while holding the binoculars for more stability. It does have an option for a tripod holder but I've never used it. Another downside is the backpack thing it comes with is poorly made and can barely fit the binoculars. You don't really need it anyway. Just don't lose the rubber lens covers. I dropped it on concrete it's first night but it has virtually no damage. But I've really enjoyed the beauty of the stars through this incredibly well-made, clear, and versatile pair of Stargazing Binoculars. It's worth the price for sure.
A**R
Hello stars! 25x100 celestron here
For what ever reason I was delivered a used product with scratches, burred misaligned screws and missing parts! Contacted seller but no response( was saturday..responded on monday, the day replacement was already on the way). Return was swift and replacement arrived 2 days later. It was proper new one this time! These 25x100s are very sturdy good quality binos. Mine were in perfect focus as far as I can tell and collimated properly. The tripod attachment has a smaller screw size (1/4" instead of 3/8"). Screw has to be tightened very tight, afraid of damaging aluminum threads. I bought a ballhead boasting 31lbs capacity for the binos. It was supposed to have enuf capacity to hold the binos even tilted as it weighs roughly 9lbs. Yeah..really didn't. Wobbly and shake. Setup had a telescope tripod so definitely not lacking there. Ended up going all in with Oberwerk tripod. Perfect choice for the binos. With that setup I can easily look all over with steady view. I'm impressed with image quality and light gathering ability. There's a little bit of chromatic aberration visible looking at moon (clear green hue on light side). Stars (what ever visible from backyeard) look beautiful crisp light spots, chromatic aberration not noticeable. Why point out the tripod in review? These are totally useless by hand. I'm a big guy and can't hold these steady at all, magnification (*25) and weight make it literally impossible to enjoy the view. Sturdy support just is mandatory expense! You cannot avoid it. And preferably with adjustable center column, viewing towards zenith (if standing) requires at least eye level height (6"6' in my case). Else you'll just strain your neck or back ;) Along with binos comes a convenient carry case. Feels robust and good quality to me. Also there is no focus ring on this beast. If you need to focus, you focus each eye separately. Inconvenient if you have several viewers but awesome as you can ditch eyeglasses and still get perfect focus.
B**N
Worth the weight
I purchased the SkyMaster 25x100 Binoculars. They are heavy, and you will need to use a very good tripod to support them. You may need to factor in at least another $100 to the cost of acquisition, and more if you're tall. I suppose you could sit in a lawn chair and use the binoculars with your arms resting on your chest, but even a strong person is going to tire quickly. The view you get through these binoculars is better than one would get from a telescope at the same price point, and the optics gather a lot of light. There is some chromatic aberration near the edges of the lenses, but it is slight, and doesn't interfere with the detail. Astronomical binoculars, like telescopes, require a little practice, patience, and care to provide the best views. These binoculars are easier to set up than a telescope, easier to put in your car and head out into the dark, easier to focus, and easier to look through, but they are still astronomical binoculars. I don't recommend these for most kids, as they are too heavy and require a non-trivial amount of strength to place and secure them on a tripod. I would only purchase these for someone who has an obvious serious interest in amateur astronomy. The other thing that kids, and some adults, do is grab onto the binoculars while viewing, and then complain that they can't see anything. I'm not a parent, and I can only stand about 9 seconds of some kid, or adult for that matter, whining about the view before I start seriously thinking about packing stuff up and going home. Ordinary field binoculars, mounted on a tripod, will provide extremely good views of many celestial objects, are much more kid-friendly, and generally make better gifts. Addendum: I purchased a heavy duty video pan-tilt head for the tripod, and mount the SkyMaster binocs on that. Here is the one I purchased: https://www.amazon.com/gp/product/B0017LEESA The binoculars are MUCH easier to manipulate with the pan head. But the pan head itself is heavy, so make sure your tripod. The Orion heavy duty parallelogram looks like it might be better, but you need to drop another $500 to get that. If you already have a decent tripod, the pan head is about half the price of the parallelogram. I purchased the Manfrotto 229 3D because the reviews from people with heavy equipment were very positive. The SkyMasters are a lot heavier than most consumer-grade high-def video cameras.
J**O
Me encanta Celestron! Cómo podrán ver, tengo algunos artículos 25*100, 25*70 y 20*80 La referencia a este comentario es en base a los binoculares 25*100 es un artículo ya profesional no es para principiantes es muy pesado para maniobra por lo que se necesita de un buen tripié Tiene mucho más profundidad que los otros binoculares que tengo, y mucha más definición... El precio estaba bastante accesible y la compra a meses sin intereses fue lo que terminó a animarme Los recomiendo mucho si les gusta la astronomia
F**Y
Estos binoculares los compré para mi tio después de mucho leer reviews y comparativas. Son realmente grandes y pesados, olvídate de observar con ellos a pulso, a no ser que seas La Cosa o el Increible Hulk (cualquier otro superhéroe necesitaría trípode). En nuestro caso, mi tio se construyó un cómodo trípode basculante para observar desde cualquier posición y disfrutar de los binoculares y del cielo nocturno. Aquí tenéis una foto de como quedó (viva España y la cerveza xD): [...] Observar el cielo con unos prismáticos te da otra dimensión, mucho más espectacular de la que obtienes observando con un sólo ojo a través de un telescopio (y tengo un 200/1000 que no es cojo). Ideal para constelaciones, cúmulos, nebulosas... Para planetaria se queda corto como es de esperar, pero no es este su cometido. La calidad óptica es buena, tiene sus pequeños defectos, pero ¿habéis visto los precios de estos cacharros en la gama alta? Yo, desgraciadamente no tengo 10.000€ para gastarme en unos cristales mejor; y en alguna quedada he tenido oportunidad de probarlos y por la diferencia de precio, merece la pena si te sobra la pasta, si no, con estos estarás más que satisfecho. Viene con una funda tipo bolso para transportar. Algo menos de 270 euros en abril de 2012. Buen precio y con el servicio de Amazon.
S**U
Wont say much just few words...GO FOR IT..(ASTRO.... TERISTRIAL) bino king. Just make sure its colimated
A**M
الدربيل ممتاز و يعطيك رؤية حلوه للقمر و بعض الكواكب في الظروف المناسبه. لكن خذ في بالك لا تشتريمعاه ترايبود و راس صاحي
M**M
I'd argue that this pair of binoculars is one of the best for beginner stargazing (and even viewing some bright DSOs); the views are breathtaking, the build quality is impeccable, and the overall experience in using these binoculars was positive. Fortunately, I was lucky enough to get a pair with no noticeable collimation errors or any chromatic/comatic aberration, although with any pair of binoculars, especially heavy ones like the 25x100s, one may find glaring errors pretty often, and might be forced to get a replacement. Living in a bright suburban area (Bortle 6), the Andromeda & Triangulum galaxies could be made out as faint smudges, the Pleiades, Hyades, and Praesepe clusters simply explode into view with hundreds of stars being resolved, the core of the Orion Nebula could be made out (unfortunately more fainter details couldn't be made out hand-holding the binoculars), and Jupiter's moons are easily resolved. It is therefore important to mention the necessity of using a tripod. Hand holding this 4kg beast is almost impossible, and while the views might still be great, the full potential of the binoculars could only be harnessed through the use of a heavy-duty tripod (I'd recommend the Orion Paragon Plus XHD Tripod. Celestron's Heavy-Duty Altazimuth Tripod is too short to be used comfortably for conventional binocular use, and ESPECIALLY when looking towards the zenith). The integrated tripod adapter is particularly useful here, and feels much more sturdy than binoculars that use separate screw-on tripod adapters that may often suffer from defects. It definitely feels very strong and heavy-duty. Aside from astronomical viewing, this pair of binoculars particularly excels in terrestrial viewing. Watching the new year fireworks through this bad boy was a sight to behold. If focused correctly (which might be tedious due to the binoculars using an individual focusing mechanism, rather than centre focusing), individual firework particles could be made out from others among thousands. The resolution is noticeably better than other binoculars with smaller apertures (having tried a pair of 15x70s prior to purchasing this), and also performs well in high-distance bird watching (of course, using a tripod). The protective case is a different story. The padding inside is quite difficult to handle, and I find myself leaving the binoculars outside of their case, as it's too much of a hassle to get the binoculars in and out of the padded case. The lens covers (especially on the objectives) easily come off when pulling the binoculars out of the case, which could be a minor nuisance. All in all, this is an amazing choice for anyone who wants to get into astronomy, as they can appreciate the amazing sights of space as well as develop skills such as star-hopping and picking out fainter details. Always purchase a heavy-duty tripod with these if you want the best performance from these. Clear Skies.
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