Explore Scientific BT-100 SF High-Performance Binocular Telescope

The Explore Scientific BT-100 SF Binocular Telescope is engineered for those who demand the best in outdoor optics. As part of the renowned BT Series, these binoculars are designed for rigorous use in the most challenging environments. Whether you're an avid astronomer or an outdoor enthusiast, these binoculars offer exceptional performance and durability.

Key Features:

• Rugged Construction: IPX6-rated sealed and nitrogen-filled to prevent internal fogging even in harsh weather.
• Lightweight Design: Made from magnesium to reduce weight and enhance portability.
• Double Telescope Functionality: Provides each eye with a complete lens system for full light-gathering power, delivering vivid images and a comfortable viewing experience.

Included Accessories:

• Eyepieces: Comes with two premium 20mm eyepieces from the 62° LER series, compatible with 1.25-inch (31.7mm) standards.
• Dew Caps: Extendable to prevent fogging and stray light interference.
• Carrying Handle: Integrated for easy transport and tripod mounting.

Specifications:

• Type of Build: Porro prisms
• Magnification: 28x
• Front Lens Diameter: 100mm
• Focal Length: 550mm
• Exit Pupil: 3.6mm
• Eye Relief: 15mm
• Eyepiece Cups: Folding
• Interpupillary Distance: 54–76mm
• Glass Material: BaK-4
• Lens Coating: Fully multi-coated
• Focusing System: Single focusing

Special Features:

• Zoom Function: No
• Eyepiece for Spectacle Wearers: Yes
• Image Stabilizer: No
• Compass: No
• Rangefinder: No
• Splash-proof: Yes
• Watertight: Yes
• Threaded Tripod Connector: Yes
• Lens Cover and Eyepiece Cap Included: Yes
• Inert Gas Charge: Nitrogen-filled

Field of View and Close Focus:

• True Field of View: 2.3°
• Apparent Field of View: 62°
• Close Focus Limit: 25m

General Information:

• Series: BT
• Body Material: Magnesium
• Color: Black
• Dimensions (LxWxH): 520 x 270 x 155 mm
• Weight: 6800g

Additional Features and Applications:

These binoculars are perfect for astronomy enthusiasts, offering superb optical performance for observing celestial objects, including star clusters, nebulae, the moon, and planets. They also provide detailed views of terrestrial targets, such as ships or airplanes. The large light-gathering lenses and professional coatings ensure bright, high-contrast images, even at twilight or night. The comfortable 45-degree viewing angle supports extended, fatigue-free observation sessions.