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Celestron – SkyMaster 25X100 Binocular – Outdoor and Astronomy Binoculars – Powerful 25x Magnification – Giant Aperture for Long Distance Viewing – Multi-Coated Optics – Carrying Case Included
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Purchase options and add-ons
Brand | Celestron |
Age Range (Description) | Adult |
Special Feature | Water-resistant |
Objective Lens Diameter | 100 Millimeters |
Magnification Maximum | 25 |
About this item
- POWERFUL 25X MAGNIFICATION: Giant astronomy binoculars feature massive 100mm objective lenses and powerful 25x magnification. These powerful binoculars are ideal for long-distance viewing of land-based subjects or astronomical observing at night.
- INCLUDES TRIPOD ADAPTER: Stabilize your binocular for shake-free views. Mount your 100mm SkyMaster binoculars on any traditional photographic tripod with the built-in tripod adapter.
- BRIGHT, SHARP VIEWS WITH BaK-4 PRISMS: The SkyMaster is a favorite among those who view in dim conditions near dawn and dusk or at night for astronomy. BaK-4 prisms maximize light throughput to your eye so you see brighter, more detailed images.
- DURABLE AND WATER-RESISTANT: A rubber-armored housing protects your binoculars from damage and provides a secure gripping surface. The water-resistant exterior stands up to tough conditions and unexpected rainy weather.
- UNBEATABLE WARRANTY & CUSTOMER SUPPORT: Buy with confidence from Celestron, a leading optics brand in California since 1960. Your purchase includes a Celestron Limited Lifetime US Warranty & US-based expert tech support.
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From the manufacturer
SkyMaster 25x100mm Porro Binocular
Go giant! With the SkyMaster 25x100, you get massive 100mm objective lenses—Celestron’s largest aperture available in a binocular. Powerful 25x magnification brings distant subjects to you.
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Bright, Sharp Images—Even in Dim Conditions
Multi-coated optics and BaK-4 prisms deliver excellent light transmission for brighter images. The SkyMaster is a favorite among those who view in dim
conditions near dawn and dusk, or for astronomy.
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Durable and Water Resistant
The rugged, armored body provides protection and a secure gripping surface. Plus, the water-resistant exterior means you won’t have to worry about getting caught in unexpected weather.
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Comfortable & Eyeglass Friendly
Soft, rubber eyecups are comfortable to use and block stray light. Eyeglasses wearers can fold down the eyecups for easier viewing.
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Integrated Tripod Adapter Rod
Enjoy extended, hands-free viewing sessions by mounting your SkyMaster binocular on a tripod. The built-in tripod adapter rod provides an ultra-stable base.
Better Viewing
Objective lens cap, rainguard, carrying case, neck strap, lens cloth, and instruction manual all included.
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SkyMaster 25x100
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Customer Reviews
|
4.4 out of 5 stars
3,947
|
4.4 out of 5 stars
3,947
|
4.3 out of 5 stars
8,085
|
4.5 out of 5 stars
7,970
|
Magnification
| 25x | 20x | 25x | 15x |
Field of View (degrees)
| 3.0° | 3.7° | 2.7° | 4.4° |
Field of View (feet @ 1000yds)
| 156 | 195 | 141 | 231 |
Lens Coatings
| Multi-coated | Multi-coated | Multi-coated | Multi-coated |
Prism Material
| BaK4 | BaK4 | BaK4 | BaK4 |
Diopter Range
| ± 5 | -4 to +8 | -4 to +8 | -4 to +8 |
Close Focus Distance (feet
| 80 | 108 | 75 | 43 |
Eye Relief (mm)
| 15 | 18 | 13 | 18 |
Eyecup
| Folding | Folding | Folding | Folding |
Environmental Protection
| Water Resistant | Water Resistant | Water Resistant | Water Resistant |
Tripod Adaptable
| Yes | Yes | Yes | Yes |
Videos
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Honest Review- Celestron SkyMaster 25X100 Binocular
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This Item Celestron – SkyMaster 25X100 Binocular – Outdoor and Astronomy Binoculars – Powerful 25x Magnification – Giant Aperture for Long Distance Viewing – Multi-Coated Optics – Carrying Case Included | Recommendations | dummy | dummy | dummy | dummy | |
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Price | $409.95$409.95 | $149.99$149.99 | $179.99$179.99 | $551.94$551.94 | $189.99$189.99 | -15% $1,847.10$1,847.10 List: $2,184.99 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Wednesday, Apr 3 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Picture quality | 4.0 | 4.8 | 4.7 | — | 4.2 | — |
Value for money | 4.0 | 4.4 | 4.9 | — | 4.4 | — |
Light weight | 3.0 | — | 3.5 | — | 3.6 | — |
Sold By | Amazon.com | LUXUN | SCOKC | Hour Loop | ESSLNB | Amazon.com |
max magnification | — | 20 multiplier x | 30 multiplier x | 25 multiplier x | — | 40 multiplier x |
focus type | Individual Focus | — | Individual Focus | Individual Focus | Center Focus | Individual Focus |
lens coating | Multi-Coated | Fully Multi-Coated | — | Multi-Coated | Fully Multi-Coated | Multi-Coated |
eye relief | 15 millimeters | 10 months | 13.1 millimeters mercury | — | 17.5 millimeters | — |
objective lens diameter | 100 millimeters | 80 millimeters | 80 millimeters | 100 millimeters | 80 millimeters | 100 millimeters |
binocular prism | Porro Prism | Porro Prism | Porro Prism | Porro Prism | Porro Prism | Porro Prism |
zoom ratio | 25 multiplier x | 20 multiplier x | 30 multiplier x | 25 multiplier x | 20 multiplier x | 20 multiplier x |
material | Rubber | Rubber | Aluminum | Aluminum | Rubber | Aluminum, Metal |
What's in the box
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Product information
Product Dimensions | 15.27 x 10 x 5.1 inches |
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Item Weight | 8.6 pounds |
ASIN | B00008Y0VU |
Item model number | 71017 |
Customer Reviews |
4.4 out of 5 stars |
Best Sellers Rank | #133 in Camera & Photo Products (See Top 100 in Camera & Photo Products) #76 in Binoculars |
Is Discontinued By Manufacturer | No |
Date First Available | June 17, 2006 |
Department | unisex-adult |
Manufacturer | Celestron |
Country of Origin | China |
Warranty & Support
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Product Description
Celestron has designed and engineered the largest SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. Our large aperture powerful binoculars ensure high performance in all weather conditions and are ideal for astronomical viewing or terrestrial use. Each SkyMaster model features high-quality BaK-4 prisms and multi-coated optics for enhanced contrast, with bright, sharp image quality—even in dim conditions. A practical integrated tripod adapter rod allows you to enjoy extended hands-free viewing sessions by simply mounting your SkyMaster binoculars on any sturdy photographic tripod. Our SkyMaster model features soft, rubber eyecups that block stray light and are comfortable to use. Eyeglass wearers can fold down the eyecups to enjoy a better viewing experience. For maximum stability and secure optical alignment, the 100mm SkyMaster model features enhanced structural reinforcement to the main binocular body. The purchase of our powerful Celestron SkyMaster 25x100 binoculars includes an objective lens cap, a rainguard, a deluxe carrying case, a neck strap, a lens cloth, and an instruction manual. Buy with confidence from the world’s No.1 telescope brand and a leading binocular manufacturer, based in California since 1960. You’ll also receive a Limited Lifetime warranty and unlimited access to technical support from our team of US-based experts.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the value, view, performance and clarity of the binoculars. For example, they mention that it's amazing for stargazing, great for both astronomy and land viewing, and works well with a tripod. That said, some complain about the fit and portability. They say the bins are surprisingly large and heavy.
AI-generated from the text of customer reviews
Customers like the clarity of the binoculars. They say the views are clear and crisp, deep sky objects are nice and clear, and they are good for terrestrial viewing. They produce sharp and clear images, and it provides a high quality view. They gather a lot of light and give a big display, giving spectacular views of the moon and craters and surface features. Customers also say they can see really faint objects and amazing sights in the sky.
"...This puppy is way bigger! The views you get are better, closer, clearer...." Read more
"...The views are wondrous to behold! It puts the moon right into your lap!" Read more
"...You can see really faint objects. And occasionally, and airplane will pass by, and these binoculars pick out amazing detail on airplanes...." Read more
"...at all, magnification (*25) and weight make it literally impossible to enjoy the view. Sturdy support just is mandatory expense!..." Read more
Customers appreciate the value of the binoculars. They say they are well worth the price, with a lifetime warranty.
"...Overall, you should get these. They are well worth the price. But on the other hand, you are taking a risk when it comes to production...." Read more
"...I conclusion, you're not losing here, there is value and quality, you will get an eyeful of stars and lunar mountain ranges...but once you get hooked..." Read more
"...First things first, for the price, they're absolutely worth it in my opinion...." Read more
"...But, based on what I have already seen, this is the best buy for the money I havemade for astronomical equipment...." Read more
Customers are satisfied with the performance of the binoculars. They mention that they work well in the daytime, with a tripod, and in all types of light. The built-in tripod gizmo works well, and the bins are great for astronomy and terrestrial viewing. They are quick to adjust and work well with diffraction. Customers are happy with the product and find it to be perfect.
"...The nylon carry case is adequate and sensible, I see other brands with hard cases and as a 25+yr Pelican user, I honestly would get my own Pelican..." Read more
"...I sky tested the binoculars a few nights later and they performed very well. I had onlyabout 20 minutes till the clouds took over...." Read more
"...They work really well now, but I'm giving them a four-star rating since Celestron really should tell the consumers how to fix this problem by..." Read more
"...expect for mass-produced, imported Asian optical devices... everything is acceptable; nothing is outstanding in this price range...." Read more
Customers like the view of the binoculars. They mention that they are amazing for stargazing, great for both astronomy and land viewing, and a wonderful way to exercise your astronomical hobby. They also say that it's a good entry-level astronomer's binocle for a decent price. Customers also say it provides higher powered wildlife viewing than hand held binos, and does a great job at picking ridiculously far away stars.
"...All in all, these binoculars are a wonderful way to exercise your astronomy and deep space hobby!!" Read more
"...The views are clear and crisp. They can pick up Jupiter's moons, but I haven't noticed any banding...." Read more
"...Wonderful entry level set of stargazing binoculars that can take camping or just out and about without worry...." Read more
"...I could see craters on the moon. It was exciting for my grandsons...." Read more
Customers are mixed about the quality of the binoculars. Some mention that the optics are quality, while others say that the quality is average, flimsy, and difficult to hold steady.
"...Otherwise, this is an amazing piece of equipment.The bag: I don't understand why nobody ever gives much info on the bag... it's important...." Read more
"...These binocs are truly awesome! They are heavy on the tripod which makes them difficult to move around...." Read more
"...Along with binos comes a convenient carry case. Feels robust and good quality to me.Also there is no focus ring on this beast...." Read more
"...Celestron should make the hard shell case is because the binoculars are so expensive, and Celestron can give us some gratitude by providing the..." Read more
Customers are mixed about the collimation of the binoculars. Some mention that they are well collimated and spot on right out of the box, while others say that they need to be collimating.
"The binoculars I received were in need of collimation...." Read more
"...Mine were in perfect focus as far as I can tell and collimated properly...." Read more
"...I just tapped it deeper and it was fine. To my surprise the collimation was way off. Ghosting and double vision was excessive...." Read more
"...Mine arrived on time and I found them to be well collimated (aligned) If you take care not to bang them around or drop them they should stay that..." Read more
Customers find the binoculars too heavy and bulky for free hand use. They also say the bins are difficult to move around.
"...It's huge, and heavy. The pics show the 25x100, next to my 2yr old 20x80's (also excellent!)This puppy is way bigger!..." Read more
"...They are heavy on the tripod which makes them difficult to move around. In a perfect world I would leave them outside set up...." Read more
"...Along with binos comes a convenient carry case. Feels robust and good quality to me.Also there is no focus ring on this beast...." Read more
"...These binos are HEAVY so a sturdy tripod is recommended. The 20x80 is significantly heavier than my 15x70 set...." Read more
Customers are dissatisfied with the fit of the binoculars. They mention that they are surprisingly large, heavy, and bulky. They also say that the small FOV and zoom make the product unreliable. Customers also mention that the phone attachment recommended does not fit on the bins, and that the binnocular's track fit is not super tight.
"...It's huge, and heavy. The pics show the 25x100, next to my 2yr old 20x80's (also excellent!)This puppy is way bigger!..." Read more
"...undersized and has movement. There is a single screw which was not tight on both..." Read more
"...really large binoculars will move side to side because the track fit is not super tight...." Read more
"...This fit the bill perfectly. These are surprisingly large and become a bit tiresome to hold steady...we took turns laying in the hammock to stare up..." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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You'll see a lot of people on here who are more than amateur hobby astronomers. If they criticize these binoculars... DON'T LISTEN TO THEM. Pro's should stick to fancier equipment.
However, for us hobbyists, this thing is AMAZING!!
First, I thought it was used or opened, because the tape on the box was open, but it wasn't, it was all snug inside.
It's huge, and heavy. The pics show the 25x100, next to my 2yr old 20x80's (also excellent!)
This puppy is way bigger! The views you get are better, closer, clearer. I attached my Galaxy S22 Ultra to the binoculars and zoomed way into the moon, and took pics of Jupiter and his Galilean moons, beautiful...
You can see deeper space, as well.
For the first time, I had better views of Saturn, still small, but a little better then the 20x80's. The focus is easier than the 20x80, you adjust each eye lens individually, I like that better. The only negative for me, is, the big lens covers aren't attached to these binoculars, like the 20x80's are, so you can possibly lose them.
Otherwise, this is an amazing piece of equipment.
The bag: I don't understand why nobody ever gives much info on the bag... it's important. They could've done better with it, for the price you pay, but, it gets the job done.
The binoculars are in a padding that wraps around the binoculars and Velcros shut, then you insert that in the bag. It seems safe enough. What people don't usually say, is that not only can you carry it with the shoulder strap, but, you can take the shoulder strap off and pass it through the plastic hoops on the back of the bag, and carry these heavy binoculars as a back pack! I LOVE that! It's much better than carrying them over the shoulder, especially for us smaller people. There is also a small zipper pouch on the front of the bag, where I personally store my green laser light, that I use while stargazing.
All in all, these binoculars are a wonderful way to exercise your astronomy and deep space hobby!!
Reviewed in the United States on November 5, 2022
You'll see a lot of people on here who are more than amateur hobby astronomers. If they criticize these binoculars... DON'T LISTEN TO THEM. Pro's should stick to fancier equipment.
However, for us hobbyists, this thing is AMAZING!!
First, I thought it was used or opened, because the tape on the box was open, but it wasn't, it was all snug inside.
It's huge, and heavy. The pics show the 25x100, next to my 2yr old 20x80's (also excellent!)
This puppy is way bigger! The views you get are better, closer, clearer. I attached my Galaxy S22 Ultra to the binoculars and zoomed way into the moon, and took pics of Jupiter and his Galilean moons, beautiful...
You can see deeper space, as well.
For the first time, I had better views of Saturn, still small, but a little better then the 20x80's. The focus is easier than the 20x80, you adjust each eye lens individually, I like that better. The only negative for me, is, the big lens covers aren't attached to these binoculars, like the 20x80's are, so you can possibly lose them.
Otherwise, this is an amazing piece of equipment.
The bag: I don't understand why nobody ever gives much info on the bag... it's important. They could've done better with it, for the price you pay, but, it gets the job done.
The binoculars are in a padding that wraps around the binoculars and Velcros shut, then you insert that in the bag. It seems safe enough. What people don't usually say, is that not only can you carry it with the shoulder strap, but, you can take the shoulder strap off and pass it through the plastic hoops on the back of the bag, and carry these heavy binoculars as a back pack! I LOVE that! It's much better than carrying them over the shoulder, especially for us smaller people. There is also a small zipper pouch on the front of the bag, where I personally store my green laser light, that I use while stargazing.
All in all, these binoculars are a wonderful way to exercise your astronomy and deep space hobby!!
I most highly recommend this Celestron – SkyMaster to anyone who loves star gazing. The views are wondrous to behold! It puts the moon right into your lap!
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.
Top reviews from other countries
I was looking at Vega, Deneb and Altair (summer triangle). Stars are pin point, contrast was great. Bit heavy but manageable even without a tripod ( my tripod was ready but I find it more easy to scan the sky freely. No issue with collimation. Field of view and eye relief are very comfortable for star gazing ( I have 10x50, 16x50 and 20x60 all Pentax) and I find the 20x80 Celestron is the best one ( I would love to have the 20x80 ED pro sky master but not available yet). So many stars.. Astronomical seeing tonight was above average 😊
No need for tripod adapter, it is already provided.
Alguns meses atrás comprei um 7x50 da mesma marca e após varrer boa parte do céu, senti a necessidade de um upgrade. Apesar de o 15x70 ser mais barato, resolvi ir de vez atrás de um maior e deparei com esse 20x80.
Arrependimento? Apenas com o tempo de espera até chegar, passou pouco mais de 1 mês até ter em mãos.
Já o binóculos em si é sensacional, não tem comparação com meu 7x50 quanto à observação do céu. Obviamente não é possível ver detalhes dos planetas, mas Titã é visível, Saturno aparece como uma luz alongada e Júpiter é majestoso com seus maiores satélites, imponente no campo de visão! Notam-se muitas crateras e montanhas na Lua com uma qualidade incrível!
Além disso é possível ver também aglomerados estelares, nebulosas e algumas galáxias, porém dependem pelo menos de um céu rural. Falando em nebulosas, a Carina e a de Órion são as mais lindas para se ver, na minha opinião.
Para se ter uma ideia do que é possível enxergar, no centro de onde moro cheguei a identificar, com muito custo, estrelas até da magnitude +10.2, sendo mais fácil identificar até mais ou menos +9.5. Já objetos menos densos, como nebulosas e cometas, dependem muito da poluição luminosa e não chegam a tal magnitude.
Como nem tudo é perfeito, há alguns pontos negativos:
1° - a aberração cromática é bem forte nos objetos mais brilhantes, mas não chega a comprometer a experiência.
2° - por mais que na embalagem diga que serve para visualização terrestre de longa distância, não gostei da falta de nitidez nos morros ao longe. Nesse quesito ainda prefiro meu 7x50.
No geral, é um equipamento indispensável e ótima alternativa aos telescópios baratos. Mas tenha em mente que é praticamente exclusivo para astronomia.
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
Reviewed in Mexico on June 16, 2021
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