Microscope with position detection of optical elements changers

Microscope provided in the illumination and / or observation and / or detection beam path optical components for different spectral influencing of at least one of said optical paths, DOLLAR A is wherein, preferably provided outside these beam paths an arrangement of a plurality of wavelengths emitting light source and at least one spectroscopic which detects the light of this light source after interaction with a component, wherein the interaction is performed by transmission or reflection of light through the device. DOLLAR A The detected values ​​of the spectral sensor are compared with pre-stored values, and it is advantageously carried out an association with pre-stored values ​​in a memory, wherein the mapping is performed together with a position signal of a component changer. DOLLAR A The detected values ​​are, if no allocation to pre-stored values ​​is made separately and stored together with a position signal of a component changer.