Not a tweak itself, bur rather a useful info that not everyone are aware about: DOF (depth of field, "blurred effect/focus") is usually different for each ENB preset - as certain author sees it better in own perspective. Some ENB presets may have "lightweight" gameplay DOF - so only ...
English users: I'm now in the "regular" process of constantly adding... things^^ ENBs, Presets, Benchmarks, etc...