A deformable mirror (10) with an at least quasi-continuously deformable optically effective surface (12) has a floatingly supported mirror plate (11) which is positioned along its edge by a portion of the adjusting members (14.1), whereas the other portion of the adjusting members (14.2) locally individually deforms the mirror plate (11) for the purposes of wave front correction. In that respect all adjusting members (14.1, 14.2) are fixed to the rear side (13) of the mirror plate (11), with a coupling portion (11) which is provided with a desired-flexion location (constriction (25)).
