It’s called: Rich Tone Monochrome.
It only works in the Jpeg file setting. It’s basically noise reduction and HDR combined for black and white. It can produce dramatic files with high sharpness and very little high ISO noise. And since the frame rate of the camera, in normal daylight, is so fast, and the processor in the camera is so powerful, the mode can be used hand-held and the camera will “micro-align” multiple frames and stack them into one finished file. Via visualsciencelab.blogspot.it
