Barco BarcoReality SIM 6 Ultra II Brochure & Specs page 2

Dedicated options for demanding applications
For night scenes in Simulation, for high contrast detail in Virtual
Reality applications and for dark starry skies in planetariums,
Barco incorporated an impressive array of proprietary
technologies and dedicated options to ensure the highest
possible contrast and multi-screen color and brightness
uniformity of all projected images.
Advanced Geometry Distortion
Electronic Soft Edge Matching (ESEM) Optical Soft Edge Matching (OSEM)