A stereoscopic optical system including: left and right channels； an electromagnetic actuator including a stator and rotor； wherein first optical components of the left channel are arranged in a left tube and second optical components of the right channel are arranged in a right tube； the stator is arranged outside the guide tubes； the rotor includes a left rotor, in which one or more of the first optical components is accommodated, and a right rotor, in which one or more of the second optical components is accommodated； the left and right rotors are mounted in one of the left and right tubes to be movable in a longitudinal axial direction； the left and right rotors include paramagnetic and/or ferromagnetic material and are movable by an electromagnetic field； the stator includes distal and proximal permanent magnets oppositely polarized； and the stator includes an electric coil for generating the electromagnet field.
