Qarl and Timeslip's Depth of Field.
This mod attempts to create a rudimentary Depth of Field effect in your game.
It's more like a camera focusing on close objects with the distance a bit blurry, than what the human eye does. It's very similar in look to the DOF in Gothic III.
There seems to be problems using this when also using both HDR and AA with an ATi x1000 series or nvidia 8000 series graphics card.
If the entire screen blurs, you will have to disable either AA or HDR, or deactivate this mod.
ATi cards don't seem to like the sm3 version of the shader. If you get a solid coloured screen with this mod enabled, try the sm2 version of the shader.