Good morning - I have recently bought the Monochrom M 246 and started to play around with some winter photos. I am used to photography but I can't get to grips with the Auto ISO on this camera. I set it to Auto ISO and select a Shutter speed and Aperture but the ISO does not change as I walk from bright light into the dark. I guess I am expecting it to act like any other digital camera - in that the ISO should automatically go shooting up. What am I doing wrong?