Spectroscopic instrument, including: a first optical component configured to spatially spectrally split a polychromatic beam of light impinging onto the first optical component, wherein the first optical component exhibits an angular dispersion (dθ/dk), in the case of which a diffraction angle (θ) of the beam of light (46a, 46c) emerging from the first optical component in relation to the beam of light entering the first optical component depends non-linearly on the wavenumber (k), an objective configured to route various spectral regions (B 1, B 2, B 3) of the split beam of light (46a, 46b, 46c) onto differing spatial regions (52a, 52b, 52c), wherein the objective is arranged in relation to the first optical component in such a manner that the first optical component is located at the centre of an entrance pupil of the objective, and wherein the objective is configured to route the beam of light (46a, 46b, 46c) split by the first optical component in such a manner that medians (Mk 1, Mk 2, Mk 3), situated equidistant from one another in the k-space, of various spectral regions (B 1, B 2, B 3) are focused to differing foci (78a, 78b, 78c), the centres of which are situated equidistant from one another in the configuration space, and a sensor, situated downstream of the objective in the beam path of the split beam of light (46a, 46b, 46c), with a plurality of light-sensitive sensor elements (54a, 54b, 54c), the sensor elements (54a, 54b, 54c) being arranged in the beam path of the split beam of light (46a, 46b, 46c), each sensor element (54a, 54b, 54c) configured to register the intensity of a spectral sector (A 1, A 2, A 3) of the beam of light and the medians (Mk 1, Mk 2, Mk 3) of the spectral sectors (A 1, A 2, A 3) are situated equidistant from one another in the k-space, where k denotes the wavenumber. a first optical component configured to spatially spectrally split a polychromatic beam of light impinging onto the first optical component, wherein the first optical component exhibits an angular dispersion (dθ/dk), in the case of which a diffraction angle (θ) of the beam of light (46a, 46c) emerging from the first optical component in relation to the beam of light entering the first optical component depends non-linearly on the wavenumber (k), an objective configured to route various spectral regions (B 1, B 2, B 3) of the split beam of light (46a, 46b, 46c) onto differing spatial regions (52a, 52b, 52c), wherein the objective is arranged in relation to the first optical component in such a manner that the first optical component is located at the centre of an entrance pupil of the objective, and wherein the objective is configured to route the beam of light (46a, 46b, 46c) split by the first optical component in such a manner that medians (Mk 1, Mk 2, Mk 3), situated equidistant from one another in the k-space, of various spectral regions (B 1, B 2, B 3) are focused to differing foci (78a, 78b, 78c), the centres of which are situated equidistant from one another in the configuration space, and a sensor, situated downstream of the objective in the beam path of the split beam of light (46a, 46b, 46c), with a plurality of light-sensitive sensor elements (54a, 54b, 54c), the sensor elements (54a, 54b, 54c) being arranged in the beam path of the split beam of light (46a, 46b, 46c), each sensor element (54a, 54b, 54c) configured to register the intensity of a spectral sector (A 1, A 2, A 3) of the beam of light and the medians (Mk 1, Mk 2, Mk 3) of the spectral sectors (A 1, A 2, A 3) are situated equidistant from one another in the k-space, where k denotes the wavenumber.