Ok.. so in that case, RealBlackPro is always on by default then?
Why do the blacks levels and shadow details "appear" more detailed when I switch this "Black Tone" from Off to Dark, Darker, Darkest?
Yes real black pro is always on because it is the panel/anti reflective filter. Someone more knowledgeable about this could give you a better answer than me, but all black tone does Is increase the black levels which I have heard increases "black crushing". On my e7000 I have it set to dark or off depending on the source.