BT-70 SF Large Binoculars with 62 Degree LER Eyepieces

Experience the night sky and distant landscapes like never before with the Explore Scientific BT-70 70mm giant binoculars. Perfect for astronomy enthusiasts and terrestrial observers alike, these binoculars feature 70mm objective lenses and a 400mm focal length for bright, high-contrast images of celestial objects, distant wildlife, and landscapes. Each eye benefits from its own full optical system, allowing for immersive, fatigue-free viewing. The BT-70 comes with two premium 62° 20mm LER eyepieces, providing 20x magnification and a 3.1° field of view. Interchangeable 1.25" eyepieces allow for magnification from 15x to 50x, and optional color or nebula filters enhance contrast and detail for astronomical observations. Built for rugged outdoor use, the magnesium housing is IPX6 waterproof and nitrogen-purged to prevent internal fogging. Features like the 45° viewing angle, extendable dew caps, integrated carrying handle, and fine helical focus ensure comfortable and precise viewing.

For optimal stability, pair the BT-70 with a sturdy photo tripod or the optional Explore Scientific U-Mount with Field Tripod. With a large aperture, premium optics, and durable design, the BT-70 is the ideal choice for enthusiasts seeking clarity, comfort, and versatility in giant binoculars.