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Celestron

Celestron SkyMaster 25x100 Binoculars – Giant Aperture Binoculars for Deep-Sky Astronomy & Long-Distance Viewing – Multi-Coated Optics – Includes Tripod Adapter & Carrying Case

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Availability: In Stock.
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Arrives Tuesday, May 12
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Style: SkyMaster 25x100 Binocular


Set: Binoculars


Features

  • OUR LARGEST TRIPOD-MOUNTED BINOCULAR: Giant astronomy binoculars with massive 100mm objective lenses and powerful 25x magnification. Pair them with any tripod for long-distance land-based viewing or astronomical observation.
  • WORKS WITH YOUR TRIPOD: Due to their size & weight, we recommend mounting these binoculars on a traditional photo tripod (not included). The built-in 14-20 adapter attaches to most tripods in seconds.
  • 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.

Description

Celestron has designed and engineered the largest SkyMaster model to meet the special demands of extended astronomical or terrestrial viewing sessions with its massive 100mm objective lenses and powerful 25x magnification. This extra- large aperture binocular ensures high performance in all weather conditions and is ideal for astronomical viewing, or terrestrial use. Due to its size, weight, and high magnification levels, this binocular should be mounted on a standard photographic tripod for use. We’ve included an integrated tripod adapter rod that allows you to mount your SkyMaster binoculars on any sturdy ¼”-20 photographic tripod in seconds. Astronomers have praised the Celestron SkyMaster for decades for its high-quality BaK-4 prisms and multi-coated optics, which enhance contrast and bring out bright, sharp images—especially in low light conditions. The binocular features soft, comfortable rubber eyecups that block stray light. Eyeglass wearers can fold down the eyecups and view with their eyeglasses on. For maximum stability and secure optical alignment, the 100mm SkyMaster model features enhanced structural reinforcement to the main binocular body. Your purchase of the Celestron SkyMaster 25x100 binoculars includes the built-in tripod adapter, objective lens caps, 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.

Brand: Celestron


Age Range (Description): Adult


Special Feature: Water Resistant


Objective Lens Diameter: 100 Millimeters


Magnification Maximum: 25


Features: Water Resistant


Objective Lens Diameter: 100 Millimeters


Magnification Maximum: 25


Specific Uses: Travel


Mount Type: Tripod Mount


Eye Relief: 15 Millimeters


Relative Brightness: 16.0


Exit-Pupil Diameter: 4 Millimeters


Coating: Multi-Coated


Water Resistance Level: Water Resistant


Focus Type: Individual Focus


Zoom Ratio: 25 multiplier x


Field of View: 3 Degrees


Apparent Angle of View: 3 Degrees


Compatible Devices: Not Obtainable


Focus Description: Fixed Focus


Low Light Technology: yes


Item Dimensions L x W x H: 10.1"L x 5.1"W x 15.28"H


Item Weight: 8.6 Pounds


Item Dimensions L x W: 15.27"L x 10"W


Size Map: Compact


Brand: Celestron


Age Range Description: Adult


Model Name: SkyMaster 25x100mm Porro Binoculars


Manufacturer: Celestron


UPC: 050234710176


Global Trade Identification Number: 76


Model Number: 71017


Manufacturer Part Number: 71017


Warranty Description: LIMITED LIFETIME WARRANTY


Built-In Media: Carrying case, Instruction manual, Lens cloth, Neck strap, Objective lens caps, Rainguard


Unit Count: 1.0 Count


Color: Black


Enclosure Material: Rubber


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • 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. ... show more
Reviewed in the United States on September 15, 2025 by Jake Renner
    • Stunning and well worth the money!!
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
Review Image by Karen Karen
I bought the 25x100... 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!! ... show more
Reviewed in the United States on November 5, 2022 by Karen Karen
    • 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. ... show more
Reviewed in the United States on April 25, 2023 by Amazon Customer

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