a shake level determination step of determining {HEAD ~ a shake level} of {TAIL ~ an image capturing apparatus} based on an output of said shake detection step 
a shake level determination step of determining { HEAD ~ a shake level } of { TAIL ~ an image capturing apparatus } based on an output of said shake detection step
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH