Last night I learned about back-button focusing. I followed the directions in this thread but I wanted to have continuous autofocus while holding down the button I designated for MF/AF toggle. In this case it is the AEL button. After trying various settings I finally discovered the magic combination. I hope this will be profitable for others with similar wants. I'm coming from all MF to just starting to experiment with AF so if anyone has pointers that will improve my setup please share for the benefit of us all. The only real let down is custom button settings are NOT stored in Memory Recall. That would have allowed great flexibility. Anyways, my settings: AEL button: AF On AEL w/ shutter: Off* Pre-AF: Off* AF w/ shutter: Off* Lock-On AF: Off (though some people might want this ) Focus Area: Wide (because I chose Focus Mode: AF-A. If I were to choose Focus Mode: AF-S I'd probably go with Focus Area: flexible Large/Medium) Focus Mode: AF-A (the beauty of this setting is the camera will start tracking if the subject moves but if it is a stationary target it will lock focus and allow you to recompose) * These settings I'm not sure if they have an effect on what I'm trying to do so I just turned them off.