A method of visualizing an object field during a surgical procedure comprises picking up an image of the object field with a camera, identifying a tool in the captured image, determining an image area in the captured image, which is located near a predetermined part of the identified tool, and generating a representation of the object field and generating a representation of the particular image area such that the representation of the specified image area is displayed superimposed on the representation of the object field, wherein a magnification appear with the structures of the object in the representation of the specified image area, is greater than a magnification, appear with the structures of the object in the representation of the object field.