The KERN OZL-441 and OZL-445 models are very flexible, robust and easy-to-use stereoscopic microscopes with zoom capability. Due to the nature, the column stand and the integrated, dimmable LED incident and transmitted light, these models are particularly flexible. These models are ideal for workplaces with a harsh working environment, such as training companies, workshops, and assembly and repair workplaces in the electronics industry. In manufacturing as well as quality control, these models are also ideal. In addition to its very good optical properties, it offers maximum comfort in this class due to its large work surface. The variety of attachment lenses, eyepieces and other accessories leaves nothing to be desired. The eyepieces are fixed in the tube to protect them from loss or damage. A central feature of this variable and robust microscope series is the stable and precisely adjustable mechanism. This is underlined by the functional and ergonomic design