This is a pretty straightforward conversion of a daytime image into one with a night mood.
Simply moving the left LCH slider in Capture NX (or levels) to the right and moving the central slider to the right too, Darkening both the dark and midtones.
Simply moving the left LCH slider in Capture NX (or levels) to the right and moving the central slider to the right too, Darkening both the dark and midtones.