One thing I have had difficulty in getting consistent results is with focusing for group photos and self-portraits. For group photos, while using the timer, what I have done in the past is, using AF and finding someone to focus on, I would lock the shutter by pressing it halfway until I hear the beep confirmation, then press it all the way down to trigger the timer so I can get back in the photo. I don't think that this retains the focus though, can anyone confirm? From doing some reading it looks like I need to put it on AF, get the lens focused, then switch to MF to retain the focus, then trigger the timer and get back into the photo, is this correct? Then for self-portraits, is the best option to place a stuffed animal or other object in place of me, focus using above method, then trigger timer and get back in position? Any other tips/advice welcomed.