I have the D500 and it works quite well. But every once in a while the auto ISO, jacks the ISO up for some reason. I was shooting today and noticed all of a sudden everything was over exposed. I was shooting the same area and within seconds of the normal shots. Then it went back to a normal range. It went from 2000 to 11400 for about 15 seconds. I was shooting manual and made no changes in settings. Anyone else ever had this happen with this camera of any other?