Dead Space 2 Redux Mod: Everything You Need to Know Before You Download
Also if you download the deadspace1 version, it has two preset files that can be used, the alt preset is set to a lighter level. Just take the preset file from that one and place it in the deadspace2 preset folder, then rename it to match the original preset name while renaming the old preset (just add an x to the end of the name) then it will use the alternate preset.