Abstract: The invention relates to an OCT system comprising an OCT light source, an OCT evaluation unit, a first OCT light guide, a second OCT light guide and a changeover module. The light from the OCT light source passes through the changeover module. In a first state of the changeover module, the OCT light is passed to an entry end of the first OCT light guide. In a second state of the changeover module, the OCT light is passed to an entry end of the second OCT light guide. A scanning device assigned to the first OCT light guide is arranged between the changeover module and the object plane. The OCT system according to the invention can be used in a flexible manner.