See Distant Worlds Clearly

Want to see the universe up close? Get the BT-120 SF Binoculars that ensure bright, sharp images without distortion.

Features

• Powerful Large Binoculars: 120 mm objective diameter and 660 mm focal length for superior light gathering and image clarity.
• Dual-Purpose Viewing: Perfect for observing celestial objects at night and distant terrestrial targets during the day.
• Durability and Weather Resistance: IPX6 waterproof and nitrogen-filled design prevent fogging and withstand harsh weather conditions.
• Comfortable Viewing Angle: 45-degree angle ensures a fatigue-free experience, even during extended observations.
• High-Quality Eyepieces: Includes two premium waterproof 62-degree 20mm LER eyepieces for a 33x magnification with a wide 1.8-degree field of view.
• Interchangeable Eyepieces: Compatible with all 1.25 inch / 31.7mm diameter eyepieces, allowing customization of magnification and field of view.
• Enhanced Image Quality: Professional Enhanced Multilayer Deposition (EMD) lens coatings and achromatic refractor Porro optics provide bright, sharp, and color-accurate images.
• Sturdy Construction: Lightweight magnesium housing with integrated carrying handle for easy transport and secure tripod assembly.
• Extendable Dew Caps: Minimize condensation on lenses and protect against stray light, ensuring clear images in various conditions.
• Versatile Tripod Compatibility: Fits standard 1/4 inch and 3/8 inch photo threads for stable mounting, with an optional U-Mount for enhanced stability.

The Explore Scientific BT-120 SF Large Binoculars are for you if…

• You are an Astronomy Enthusiast: Seeking unparalleled clarity and detail in your stargazing sessions, with the ability to observe the moon, planets, and deep-sky objects.
• You are a Nature and Wildlife Observer: Looking for bright, brilliant images of distant wildlife and landscapes, even in low light conditions.
• You are a Maritime or Aviation Enthusiast: Wanting to spot ships, aircraft, and distant objects with precision and reliability.
• You are an Outdoor Adventurer: Needing robust, weather-resistant equipment that can withstand tough outdoor conditions while providing clear and detailed observations.
• You Value Versatility and Customization: Appreciating the ability to interchange eyepieces and use various filters for personalized viewing experiences.

Imagine gazing at the night sky with unparalleled clarity, seeing the craters on the moon, the rings of Saturn, and distant galaxies with stunning detail. The Explore Scientific BT-120 SF Large Binoculars offer a 120 mm objective diameter and 660 mm focal length, providing exceptional light-gathering capability for bright, clear images even in low light conditions. With professional Enhanced Multilayer Deposition (EMD) lens coatings and achromatic refractor Porro optics, these binoculars transform your stargazing experience, allowing you to explore the cosmos like never before.

For nature and wildlife enthusiasts, the BT-120 SF delivers brilliant daytime performance. Observe birds, wildlife, and distant landscapes with precision, thanks to the high-quality optics and professional lens coatings. The 33x magnification and wide 1.8-degree field of view ensure that you capture every detail, whether you're watching a bird in flight, a deer in the distance, or even ships and airplanes on the horizon. The large 3.6mm exit pupil ensures bright images, even in twilight.

Durability and weather resistance are essential for any serious outdoor equipment, and the BT-120 SF excels in both. Its IPX6 waterproof and nitrogen-filled design prevents internal fogging and withstands harsh weather conditions, ensuring reliable performance in any environment. The robust magnesium housing, combined with a lightweight design of 18.3 lbs, makes these binoculars easy to handle and transport, even on challenging adventures. The integrated carrying handle facilitates transport and ensures a secure hold during tripod assembly.

Comfort and ease of use are also top priorities with the BT-120 SF. The 45-degree viewing angle allows for relaxed, extended viewing sessions without straining your neck or eyes. The long eye relief eyepieces (15mm) and soft silicone eyecups provide a comfortable viewing experience, even for eyeglass wearers. With the fine helical individual focusing mechanism, you can achieve precise focus effortlessly, ensuring the sharpest images every time. The adjustable interpupillary distance from 54 to 76mm ensures a personalized and comfortable viewing experience for all users.

Customization and versatility set the BT-120 SF apart. The interchangeable eyepieces with a 1.25 inch / 31.7mm plug-in diameter allow you to adjust magnification and field of view to suit your needs. Choose from a wide range of eyepieces, with focal lengths from 8 to 26mm, and use various color and nebula filters for personalized viewing experiences. Compatible with a wide range of Explore Scientific eyepieces, including the 62 and 82 degree series, you can achieve magnifications from 25x to 75x. The precise brass compression ring clamp ensures a stable, tilt-free position for the eyepieces, providing reliable performance during every observation. The extendable dew caps minimize condensation on lenses and protect against stray light, ensuring clear images in various conditions.

Investing in the Explore Scientific BT-120 SF Large Binoculars means unlocking a world of clarity and detail, whether you're an avid stargazer, a passionate wildlife observer, or an adventurous explorer. These binoculars combine advanced optical technology, robust construction, and versatile features to deliver an unparalleled viewing experience. Elevate your observations with the BT-120 SF and see the world in a whole new light.

Elevate Your Observation Experience

To truly maximize the potential of your Explore Scientific BT-120 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.