SKU: 19252117481

Explore Scientific BT-100 SF Large Binoculars with 62 Degree LER Eyepieces

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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Explore Scientific BT-100 SF Large Binoculars with 62 Degree LER EyepiecesAchieve Vivid Details Want crystal clear views? Get Explore Scientific BT 100 SF Binoculars for sharp details without vibrations. Features Exceptional Viewing Power: 100mm objective diameter and 550mm focal length for unparalleled clarity in celestial and terrestrial observations. Versatile Observations: Ideal for viewing the moon, planets, deep sky objects, and detailed terrestrial scenes. Durable and Weatherproof: Robust construction with IPX6

Achieve Vivid Details

 

Want crystal-clear views? Get Explore Scientific BT-100 SF Binoculars for sharp details without vibrations.

 

Features

  • Exceptional Viewing Power: 100mm objective diameter and 550mm focal length for unparalleled clarity in celestial and terrestrial observations.
  • Versatile Observations: Ideal for viewing the moon, planets, deep-sky objects, and detailed terrestrial scenes.
  • Durable and Weatherproof: Robust construction with IPX6 sealing and nitrogen filling to withstand harsh conditions without internal fogging.
  • Ergonomic Design: 45-degree angled view and individual focusing for comfortable and extended observation sessions.
  • Ease of Transport: Convenient carrying handle for easy transportation and stability during tripod mounting.
  • High-Quality Eyepieces Included: Comes with two waterproof Explore Scientific 62-degree 20mm LER eyepieces, providing wide, clear views and enhanced comfort.
  • Flexible Eyepiece Compatibility: 1.25 inch / 31.7mm eyepiece holder allows easy interchangeability of eyepieces to suit your viewing needs.
  • Condensation-Free Viewing: Extendable dew caps prevent lens condensation, ensuring clear views in any weather.
  • Universal Tripod Compatibility: Includes 2 x 1/4 inch and 1 x 3/8 inch photo thread connections for versatile mounting options.
  • Precision Optics: Achromatic refractor Porro optics with Enhanced Multilayer Deposition (EMD) lens coatings for bright and brilliant images.
  • Lightweight and Sturdy: Magnesium housing for durability and easy handling, weighing only 15 lb.
  • Integrated Carrying Handle: Central metal handle for secure hold and ease of transport and tripod assembly.

The Explore Scientific BT-100 SF Large Binoculars are for you if…

  • You Are an Astronomy Enthusiast: Perfect for stargazers needing a high-quality instrument for clear, detailed celestial observations.
  • You Love Wildlife Watching: Ideal for bird watchers and wildlife observers who require powerful binoculars for detailed and stable views.
  • You Enjoy Scenic Views: Great for landscape and cityscape viewers who need versatile and precise binoculars for various viewing angles.
  • You Value Durability and Weather Resistance: Built for tough outdoor use with waterproof and fog-proof features to handle harsh conditions.
  • You Seek Comfort and Ergonomics: Designed for comfortable and relaxed viewing with 45-degree angled optics and individual focusing.

Unlock a new level of clarity and precision in your observations with the Explore Scientific BT-100 SF Large Binoculars. Designed for both celestial and terrestrial enthusiasts, these binoculars feature a 100mm objective diameter and 550mm focal length, ensuring unparalleled clarity for viewing the moon, planets, deep-sky objects, and distant terrestrial scenes.

Built to withstand the harshest conditions, these binoculars are robustly constructed, IPX6 sealed, and nitrogen-filled to prevent internal fogging. Whether you're observing in humid jungles or cold, clear nights, the BT-100 SF ensures a clear, uninterrupted view.

The ergonomic design includes a 45-degree angled view and individual focusing for each eyepiece, providing comfort during extended observation sessions, making your viewing experience more enjoyable. Adjust the interpupillary distance from 54 to 76mm to fit your eyes perfectly.

Transporting and setting up your binoculars has never been easier. With a convenient carrying handle and a lightweight magnesium housing weighing only 15 pounds, the BT-100 SF is designed for portability and ease of use. The binoculars measure 520mm in length, 270mm in width, and 155mm in height, making them compact enough to take on any adventure. The extendable dew caps prevent lens condensation, ensuring that your views remain clear regardless of the weather. These features make the BT-100 SF the perfect companion for outdoor adventures, stargazing sessions, or detailed wildlife observation.

Customization is key with the BT-100 SF Large Binoculars. The 1.25 inch / 31.7mm eyepiece holder allows you to interchange eyepieces easily, tailoring your magnification and field of view to your specific needs. Compatible with a wide range of Explore Scientific eyepieces, including the 62 and 82 degree series, you can achieve magnifications from 21x to 70x, offering versatility for various observational activities.

Additionally, the binoculars are equipped with both 2 x 1/4 inch and 1 x 3/8 inch photo thread connections for universal tripod compatibility, ensuring stable and vibration-free mounting for clear, steady observations.

For those who demand the best in their observation equipment, the Explore Scientific BT-100 SF Large Binoculars with 62 Degree LER Eyepieces are the ultimate choice. Experience the clearest, most detailed, and comfortable views, whether you are exploring the night sky or observing distant landscapes.

Invest in the superior stability, precision, and durability of the BT-100 SF and elevate your observation experience to new heights. Don’t settle for less when you can have the best—make the Explore Scientific BT-100 SF your go-to binoculars for all your viewing needs.

Elevate Your Observation Experience

To truly maximize the potential of your Explore Scientific BT-100 SF Large Binoculars, pairing them with the Explore Scientific U-mount with tripod for large binoculars is a must. This robust mount ensures that your binoculars remain stable, providing a vibration-free viewing experience even at the highest magnifications. The U-mount’s infinitely variable friction adjustment allows for smooth and precise movements in both azimuth and altitude axes, ensuring you can effortlessly track celestial objects or terrestrial targets.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19252117481

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4.7 ★★★★★
Based on 24 reviews
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Verified Purchase
the5thHorseman
Waukegan, US
★★★★★ 5
Exactly what I wanted
This robo-vac works great! Most of the well known products in this category are full of crap that you don't need, or is even spying on you. I'm sorry, but my appliances don't need WIFI, camera's, mapping features and an internet connection to send them to... who??? This unit has everything you need and nothing you don't. I bought it because my dog is shedding like crazy and leaving my floor looking like it needs a haircut. The Eufy has done a great job of picking up ALL of the dog hair, dirt and small particles, and has yet to become clogged. The floor it is cleaning is a linoleum floor that has a low pile rug and it cleans both very well. The Eufy runs for well over an hour and one of the best things about it.... it is VERY quiet. Emptying the dust bin is super easy, and cleaning the filters is very easy as well. The Eufy comes with extra side brushes and an extra roller. I have not had to change any of them yet, but maintenance and cleaning of these items has been made very easy as well. It comes with a well thought out cleaning tool that makes cleaning easy. It has a cutter on it, similar to an envelope opener, that gets under hair that wraps around the roller and and slices it off. This is a problem with ANY vacuum that has a roller, and this tool works very well for this. To be honest, I wasn't sure what to expect at the price point, but the Eufy works better than the older I-robot I had some time ago and is far easier to maintain. The very first time it ran it was learning the room and did not make it back to the dock, but every use since, it has always gotten back and docked. If you want a robot vac that you can start with a remote or program a schedule in, without WIFI, camera's, and yet another app to install on your phone, I highly recommend the Eufy... you won't be disappointed.
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Reviewed in the United States on July 22, 2023
I
Verified Purchase
iamoverrated
Boise, US
★★★★★ 5
The Silent, Obsessive Predator in the War on Filth: A Dispatch on the eufy L60
Size: eufy L60 SES (renewed)
Dateline: My Living Room Floor, a Battlefield of Invisible Grime, 1:30 AM. The house is quiet. The world is asleep. But in the darkness, a hunter stirs. It detaches itself from its charging dock with a soft, electronic whir, its single laser-eye pulsing with a cool, blue light. This is not a vacuum cleaner. This is the eufy L60, an autonomous, dirt-seeking assassin, and it is beginning its nightly patrol. To call what this machine does "mapping" is a gross understatement. This is military-grade reconnaissance. On its maiden voyage, the L60 didn't just bumble around bumping into things. No, it conducted a systematic, laser-guided survey of my entire living space, rendering a perfect, eerily accurate floor plan on my phone. It knows the terrain. It has identified the chair legs, the table supports, the treacherous geography of the area rug. It has logged the coordinates of every obstacle. It is operating with a level of tactical awareness that would make a special forces operative blush. And then, the hunt begins. With 5,000 Pascals of raw, unadulterated suction power, it doesn't just "pick up" dirt; it inhales it. It moves in straight, deliberate, overlapping lines, a methodical grid search that leaves no square inch un-scoured. Dust, crumbs, the detritus of a life lived with a certain amount of reckless abandon—all of it vanishes into its maw. And hair… good heavens, the hair. It attacks strands of human and pet hair with a special kind of ferocity, its "Hair Detangling Technology" acting like a tiny, internal machete, chopping the stuff up before it can choke the machinery. It is a savage and beautiful solution to an ancient and vexing problem. But the true genius, the feature that elevates this from a clever gadget to a genuine domestic revolution, is the self-empty station. This monolith is not just a charger; it is the L60's base of operations. After its patrol is complete, the little predator dutifully returns to the dock. And then you hear it—a ferocious, ten-second roar, like a miniature jet engine firing up. That is the sound of every speck of filth the robot has collected being violently sucked from its belly into a sealed bag within the tower. The result? You don't have to do a thing. For up to 60 days, this silent partnership continues. The robot hunts, it cleans, it reports back to its base, it unloads its grim bounty, and it prepares for the next mission. You are completely removed from the dirtiest part of the process. This eufy L60 is not just an appliance; it's a quantum leap. It is a quiet, frighteningly intelligent, and ruthlessly efficient solution to the endless, soul-crushing war against domestic filth. It maps its battlefield with perfect precision, it hunts its prey with relentless power, and it handles its own dirty work. It is, without a doubt, the single greatest ally you could ever have in the quest for a clean floor. Absolutely amazing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2024
J
Verified Purchase
J. Rathbun
Bozeman, US
★★★★★ 1
Waste of money
Size: eufy L60 SES (renewed)
This vacuum is a total let down. It cleans well enough however it has lost its network connection every month since I have owned it. Not only do I have to take 20 minutes to get it to finally reconnect, but it also wipes out the map that is stored. So I can’t clean until it re-maps the floor, I have to re-divide the rooms, and ultimately can’t clean for close to 2 hours when I need it most. Don’t waste your time with this unit unless you want to deal with network issues every month
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Reviewed in the United States on December 30, 2025
F
Verified Purchase
Frankie Orozco
Carnegie, US
★★★★★ 5
Great Price, Great Quality, Save your money from other over priced Brands
I absolutely love this! Just as good as any of the more expensive brands! It has great cleaning abilities and is able to get in every corner and crevice. This quality is amazing and it has a mapping feature with a remote to set it up. Powerful suction, connects to the wifi easily and has a perfect spin rate so it doesn't miss a thing! My biggest issue is that I wasn't using it as much as I should! Make sure you set up a timer and it will take care of the rest!
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Reviewed in the United States on August 8, 2025
J
Verified Purchase
Joel S.
Phoenix, US
★★★★★ 4
Growing up with robots...
I'll spare you the obvious and only mention in passing that this is obviously a Roomba-wannabee. That aside, it turns out to be a pretty good R-wbee. Which is unsurprising since I combed through a couple of different comparison YouTube videos, both of which ranked this model near the top of their lists in the category of powerful vacuum robot on a budget. This lil sucker is indeed quite effective. I only have a carpeted bedroom, so it doesn't wander much, but it easily traverses even the bulged or steeped edges of my old burber carpeting. Like any such device, if you're going to leave it unattended, you will need to clear away any cords or other small debris (anything up to about popcorn size will just get vacuumed). I empty mine every other time I use it, and it's rarely brimming over. The only problems I've encountered have always been some kind of cordage or wire or string getting wrapped around the spinning scrubber unit--easily corrected. I'm very happy with the remote. I tend to use it mostly as a remote controlled vacuum device; ie, me lazily stalking behind it, using the remote to reverse it or to bring it back round for a second pass, til I'm satisfied. In addition to allowing N-S-E-W directions, you can also press and hold a direction button to make it speed up. You can also toggle between carpet and hardwood mode. The device charges pretty quickly and usually lets me get 2 to 3 large room sessions completed before displaying low battery. I will note that my kitten was a mere 3 months old when I got this device and she has literally grown up with it. It long ago stopped frightening her and now she regards this device as a friend and playmate to such an extent that I had to move the charging dock from a floor corner to a low dresser drawer--because when I left it out in the open, my cat would always manage to depress the big GO button and send it off partially charged, destined to tangle up my charging cables and neckties. So if you plan on letting your cat grow up with this robot, take precautions. I would definitely buy another one of these, and probably will. Recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2023

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