i never touched the brightness, but i believe you can dial it down as low as you want. watched several blu-rays and 3D, no eye strain whatsoever. the strain usually comes from bad 3D , ghosting and double images where you eyes stress because image isn't natural, the acer doesnt have this problem. here's a pre-fix image, non -eco mode, also remember after a few hundred hours the brightness will drop on its own.
Edited by Vasim Pathan - 8/3/12 at 9:59am