Just want to expand on what I said about the "Bold Monochrome" experiments. Notice how where darks and blacks already exist things quite quickly turn blacker. Whites almost pure. For some subjects, this will work. But for most, the extremes look unreal and unusable for reasonably natural images. See below.
The Sony's have a high-contrast mono mode, which i presume is an equivalent. The whites show haloing which seems a deliberate effect, and for the little Sony's the blacks tend to block, though that can help to separate subject of course. I think it renders that way so you can emulate the covetted gritty street look.
I have yet to try it on the A7 which has significantly more DR. See what they are really after.
