Samsung UN55ES8000G E-Manual page 266

depth for your preferred 3D viewing
experience.
3D Effect: Adjust the perspective and
depth settings. If you select Auto,
adjust the perspective and depth
settings automatically in accordance
with the 3D input source. If you select
Manual, you can adjust the perspective
and depth you want.
3D Perspective: Adjust the overall 3D
perspective of the on-screen image.