the Combination of LST® blue light and VARiO combines the advantages of both technologies: Protection against harmful blue light, especially in the high mountains, contrast enhancement, harmonization of rapid light-shade changes and stepless self-tinting in changing light conditions. The combination of LST® bright and VARiO unites the advantages of both technologies: brightening effect, intensification of contrasts, harmonization of rapid changes in light and shade and stepless self-tinting in changing light conditions. The combination of LST® bright and VARiO unites the advantages of both technologies: brightening effect, intensification of contrasts, harmonization of rapid changes in light and shade and stepless self-tinting in changing light conditions. You are also very welcome to visi.