Oberwerk BT-100 Telescope Binoculars

Description

Exceptional Moon-Gazing in a Lightweight, Premium Build

If you’re serious about observing the Moon and crave sharp, high-contrast views of its phases, craters, and surface details—this is the binocular telescope you’ve been waiting for. The BT-100XL-ED is the third-largest instrument in the XL series, yet it weighs only 5.5 kg, making it remarkably easy to handle, transport, and mount.

Equipped with 100mm FK-61 ED glass objectives and a generous 24mm prism aperture, this binocular delivers bright, color-accurate images with minimal chromatic aberration—even at high magnifications. It's designed for magnifications up to 80x (with optional 7mm eyepieces), but already includes a pair of premium 14mm 70° AFOV eyepieces, giving you 40x magnification right out of the box. Whether you're watching the delicate shading of the Moon’s terminator or tracking its changing phases, the BT-100XL-ED makes every detail pop. Its extra-wide IPD range (50–80mm) means it’s comfortable for nearly everyone—from children to adults.

Housed in a magnesium alloy body, the instrument is waterproof, nitrogen-purged, and built to withstand the elements. Extendable glare shields help reduce stray light during daylight or bright moon viewing, while the Picatinny rail handle allows easy attachment of a finder scope or laser pointer.

And yes, it looks as good as it performs. Finished in a sleek “Luna Pearl” white with elegant red anodized trim, it arrives in a sturdy aluminum-frame carry case—or you can upgrade to the rugged Travel Case for more demanding adventures.
Each BT-100XL-ED is hand-tested and precisely collimated before shipping, certified to maintain alignment up to 140x magnification. You’ll enjoy peace of mind with a 5-year limited warranty.

From Moon-Gazing to Deep-Sky Discovery: Astronomical Applications

For astronomy enthusiasts, the BT-100XL-ED offers breathtaking views of the Moon’s phases, surface detail, and terminator shadows. Its ED optics deliver crisp, color-corrected images, even at higher magnifications, making it ideal for exploring open star clusters, brighter nebulae, and planets like Jupiter and Saturn. With the comfort of binocular vision and wide-angle eyepieces, extended stargazing sessions become a truly immersive experience—perfect for both casual observers and dedicated skywatchers.