KERN OZG-4 Stereo Zoom Microscope. Specially designed for the jewelry industry and jewelers. Stereo microscope with zoom function. The KERN OZG-4 is equipped with a column stand as well as an integrated, high-intensity halogen uplight and transmitted light unit. The KERN OZG-4 has a mechanical stand, which is extremely flexible due to its tilt and turn function. Together with the powerful lighting, which also includes a gooseneck, this is an ideal solution for jewelers and the jewelery industry In addition to the very good optical properties, these models provide an optimal package with their included dark field unit with object clamp A central feature of this variable yet robust Microscope series is the stable and precisely adjustable mechanism. UPGRADE.