A procedure and a device for terminating the immersion at a microscope having one or more immersion lenses, or both immersion lenses and dry lenses, comprising a protective sheath around the immersion film area for preventing the escape of immersion media and an immersion media supply unit and an immersion media discharge unit connected with the protective sheath. The immersion media is removed in a controlled manner in particular in an automated microscope. Subsequently, the microscopic testing can be continued without the user having to intervene in the device or the process.