Kern and Sohn OSF-4G Series stereo microscopes are optical instruments that provide a three-dimensional view of a specimen or object. They offer two eyepieces for comfortable and immersive viewing of larger solid objects. These units also feature one-sided diopter adjustment via ring or lever (located on one of the eyepieces), allowing the user to get a clear and focused vision. They come with built-in illumination systems to offer adequate lighting for the specimen, an arm-curved stand for proper positioning and an integrated handle for easy manoeuvrability and adjustment. These stereo microscopes also include a protective dust cover, eye cups and multi-lingual user instructions within the kit.