The system has a number of unique properties and characteristics that can surprise many experienced neurosurgeons. The optical properties of the microscope meet the highest quality standards. Apochromatic optics provide accurate color reproduction, sharp contrast and high resolution. The impressively wide stereo base (the distance between the optical channels of the microscope is 25 mm) provides an excellent three-dimensional image in the eyepieces and enhances the surgeon's spatial perception of the operating field and instruments.