The Explore Scientific BT Series brings the power of a pair of telescopes to two-eyed observing. These giant astronomy binoculars feature large objective lenses from 70mm up to 150mm, a comfortable 45-degree viewing angle and interchangeable eyepieces, letting you change magnification just as you would with a telescope.
Large apertures gather an impressive amount of light, revealing faint galaxies, glowing nebulae, rich star clusters and comets with an immersive, three-dimensional quality that single-eye views can't match. The angled eyepieces make it comfortable to observe high in the sky for extended periods, and the ability to use standard eyepieces, including our wide-field series, lets you tailor the view to each target. ED glass models deliver even sharper, more color-accurate images.
BT Series binoculars are best used on a sturdy mount such as our U-mount and tripod, which provides smooth, balanced motion. A finder adapter is also available for easier pointing. Beyond astronomy, these powerful binoculars excel at long-range terrestrial viewing of wildlife, ships and landscapes, making them a versatile centerpiece for any observing collection.
