I'm not sure about your question, but I understand to be, do the various camera devices automatically focus as in a typical SLR, where you may be able to 'continually focus' , and the answer is no. You either have a 'slider' to manually focus (visual, on your screen) , or, if in autofocus mode, you tap a screen 'icon' to focus wherever you may 'be', ; that is, the 'camera' e.g. 5S, etc. focuses. There is no 'continuing' focus mode.