Abstract: Disclosed is an imaging spectrometer formed of a number of image forming optical systems, each of which has associated with it a spectral-selective filter, and at least one locally-resolving, spectrally-sensitive optical detector. Spectrally-different object images can be imaged on different local areas of the optical detector by means of the image forming optical systems. The image forming optical systems are embodied as a microlens array. A zoom lens, by means of which a variable local and spectral resolution can be set, is arranged between the optical detector and the microlens array.