Scanning microscope comprising an objective disposed in an illumination beam path for focussing an illumination light beam on a specimen, a scanning unit which is disposed upstream of the objective in the illumination beam path and which serves to deflect the illumination light beam in such a way that the illumination light beam focussed by way of the objective carries out a scanning movement on the specimen, and a detection unit which is disposed in a detection beam path and which serves to receive a detection light beam that has not been deflected by the scanning unit, the detection unit containing at least one spectrally selective component (10, 90, 96) for spectrally influencing the detection light beam, said spectrally selective component having an effective surface with a spectral edge that varies monotonically with the location of incidence of the detection light beam on the effective surface, characterized in that the effective surface of the spectrally selective component (10, 90, 96) is disposed in the detection beam path, at right angles to its optical axis and at the location of an image of an objective pupil, the angle of incidence with respect to the optical axis of the detection beam path, at which the detection light beam is incident on the effective surface and which varies as a consequence of the scanning movement of the illumination light beam, being less than or equal to 35°, or in that the effective surface of the spectrally selective component (10, 90, 96) is disposed in the detection beam path, obliquely with respect to its optical axis and at a location at which a monotonically progressing variation of the spectral edge of the effective surface, which is caused by the variation in the angle of incidence at which the detection light beam is incident on the effective surface as a consequence of the scanning movement of the illumination light beam, is at least partly compensated by a counteracting variation of the spectral edge of the effective surface which is caused by a variation in the location at which the detection light beam is incident on the effective surface. a scanning unit which is disposed upstream of the objective in the illumination beam path and which serves to deflect the illumination light beam in such a way that the illumination light beam focussed by way of the objective carries out a scanning movement on the specimen, and a detection unit which is disposed in a detection beam path and which serves to receive a detection light beam that has not been deflected by the scanning unit, the detection unit containing at least one spectrally selective component (10, 90, 96) for spectrally influencing the detection light beam, said spectrally selective component having an effective surface with a spectral edge that varies monotonically with the location of incidence of the detection light beam on the effective surface, characterized in that the effective surface of the spectrally selective component (10, 90, 96) is disposed in the detection beam path, at right angles to its optical axis and at the location of an image of an objective pupil, the angle of incidence with respect to the optical axis of the detection beam path, at which the detection light beam is incident on the effective surface and which varies as a consequence of the scanning movement of the illumination light beam, being less than or equal to 35°, or in that the effective surface of the spectrally selective component (10, 90, 96) is disposed in the detection beam path, obliquely with respect to its optical axis and at a location at which a monotonically progressing variation of the spectral edge of the effective surface, which is caused by the variation in the angle of incidence at which the detection light beam is incident on the effective surface as a consequence of the scanning movement of the illumination light beam, is at least partly compensated by a counteracting variation of the spectral edge of the effective surface which is caused by a variation in the location at which the detection light beam is incident on the effective surface.