Hello everyone. I am new so the questions I have may seem easy but I have to ask. My ISO settings are 100, 200, 400, 800, 1600, 3200, 6400. When I take a picture on the Automatic Mode it says the camera used a setting of 900, 1100 etc. How can I manually adjust the ISO settings to match that when on Automatic Mode. . Can I manually use an ISO of numbers in between say 400-800 for example.I hope this makes sense. thanks in advance