In addition to my settings in the earlier post as it was quiet today I thought I would give the AUTO ISO a try out on the D3s. I set the camera to increase the ISO to achieve a minimun 1/1000sec shutter speed. The results are below. ISO speeds used by the camera were 560, 3600, 400 and 560. No noise reduction has taken place in the pictures. I was going to stay until light levels fell, to use the highest ISO's but it has been a bit wild in Cornwall today and for a change I went home early.