darius94

This past week when taking pictures in full sun using a 50mm f/2 in aperture priority mode and auto ISO, I found that the camera would set the ISO to 400 even though the shutter speed went as high as 23,000. On some photos the ISO was set to 200 but I could not determine why it set some to 400 and some to 200. Does anyone have any ideas as to why this happens?