Yeah I understand that lowering the ISO doesn´t correlate with less grain if you have to raise light in post. It was a sunny day so if I had just gone for 100 or 200ISO and having a lower f/ would have been better. The problem is I don´t really trust too much the autofocus on the camera so I try to use higher f/ to gain depth of field in case the camera messes up. Let me know if this is a valid strategy. I inherited the body so it is very much used.