I've just started experimenting with Bracketing Burst with the Fn Button assigned. I'm shooting in AF-S and focussing by pressing the Shutter Release Button halfway and then recomposing. I'm presuming that using Bracketing Burst which requires just one (held) depression of the Shutter Release Button no refocussing occurs. From the few shots I've taken doing this, it appears to be the case. Can anyone confirm.