The invention relates to a system for spherically correcting imaging of a three-dimensional object, comprising a microscope comprising an immersion medium and an embedding medium for holding the three-dimensional object separated from the immersion medium of the microscope by a boundary surface or a cover slip. According to the invention, the thickness (Δs) of the immersion medium and the position (Δs′) of the primary intermediate image of the three-dimensional object can be variably modified.