The Luxo 23780RB Binocular S-Z 23mm Microscope with Dual Boom Ball-Bearing Stand offers superior magnification. The Luxo 23780RB scope has a sturdy, heavy duty, cast alumnum alloy housing that rotates 360˚ in its focus mount. The Luxo 23780RB is standard with 10X super widefield eyepieces and have a zoom range from .7-4.5 giving it a magnification range of 7X to 45X. The Luxo 23780RB features high quality achromatic lenses with anti-reflective coatings.