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100mm ED Binocular Telescope


The pinnacle of giant binoculars. Stunning sky and terrestrial viewing.

The Astronz BT100XL-ED is the pinnacle of optical technology, achieving superior image quality with a 100mm binocular telescope that weighs a mere 6kg.

With 100mm FK-61 ED (Extra Dispersion Glass) objectives, 24mm of clear prism aperture, and a lightweight magnesium alloy body, this binocular telescope sets a new standard for image quality and portability.

The binoculars feature industry-standard 45° 1.25″ helical focusers, enabling you can use a wide range of eyepeices for different magnifications anf fields of view. Included in the package is a pair of 70° AFOV 14mm ED (40x) eyepieces. These high quality eyeieces are speciallly produced by the manufacturer to provide superior comfortable viewing.

The ED objectives greatly minimize chromatic aberration up to 94x magnification (6mm eyepieces). With the widest inter-pupli distance range of any binocular on the market (50-80mm), even small children can view through both eyepieces.

Other features include a Picatinny rail handle (for mounting a wide variety of finders or laser pointers) and extendable glare shields. Not only is the BT-100XL-ED the highest-quality binocular telescope on the market, it’s also quite attractive! Available in a lustrous “Luna Pearl” White, featuring red-anodized trim.

Add the option of an Astronz Heavy Duty Tripod for smooth easy viewing. A heavy duty hard aluminium carry case is included.

Recommended For
Objective Size 100mm
Focuser 45° 1.25" Helical Focuser
Focal Length 560mm
Inter Pupil Distance 50-80mm
Weight 6kg
Minimim Focus 25 metres
Field of View 1.75° (40x)
Exit Pupil 2.5mm (40x)
Eye Relief 18mm (40x)