They have to be robust, easy to operate, equipped with good optics and, above all, reasonably priced: the demands placed on educational microscopes are very specific. The constant assembly, disassembly, and handling by inexperienced microscope users as an everyday course element requires the microscope to be extremely durable and its operation to be straightforward. Carl Zeiss has responded to these demands and, with Primo Star, is presenting a new generation of instruments in educational microscopy - a microscope that has been developed with long-term use and great durability in mind. Robust, with a fresh design and ergonomic viewing. Primo Star incorporates all the experience gathered by Carl Zeiss in the field of light microscopy, adapted specifically for educational purposes. It is easy to operate; robust and durable; it has the quality optics from Carl Zeiss; numerous innovative solutions; it is flexible through its modularity; and shows an excellent price/performance ratio. Primo Star is available in ten different variants. The right version for every set of requirements. This microscope - together with its many practical accessories - can be used for education, in the laboratory, doctors' practice and in the field. Genuine Zeiss! Primo Star is more than just an educational microscope: behind its stunning design lies an intelligent functionality. In close cooperation with teaching institutions, Carl Zeiss has developed unique components specifically for Primo Star. From the modular illumination concept and ergonomic Siedentopf tube through to the illumination intensity display, Primo Star impresses with its numerous well thought-out details. For your students this means maximum convenience as they learn to use a microscope. And, for you, that wonderful feeling of having a "genuine Zeiss" right from the start. Modular illumination: cost-efficient or standard? Three illuminations for educational and lab work: 30 Watt halogen light; LED with stable color temperature and higher efficiency as the most economical solution, and for long-term usage; or tilting mirror for operation without electrical power. The integrated carrying handle assures a safe and secure handling for a maximum of safety for the microscope: plastic-coated on the inside, once dismantled, convenient and safe transport in microscopy course rooms and laboratories. No untidy cables: the external power supply unit or an adapter for conversion to a table-top power supply unit connects to a special rear panel. In the event of repair, just the power supply unit is replaced. The swiveling Siedentopf tube with its unique and comfortable design for the use in the laboratory and for educational purposes allows an ergonomic viewing angle of 30º, to adjust the viewing height to the users' height, and a wide adjustment range for individual interocular distance (48 mm to 75 mm).