a changing step of changing {HEAD ~ the offset value} based on the image blur correction amount and {TAIL ~ the shake level} 
based on
a changing step of changing { HEAD ~ the offset value } based on the image blur correction amount and { TAIL ~ the shake level }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL