In {TAIL ~ yet another aspect}, {HEAD ~ an image sensor} is moved in conjunction with one of the lens groups relative to a second of the lens groups 
In
In { TAIL ~ yet another aspect } , { HEAD ~ an image sensor } is moved in conjunction with one of the lens groups relative to a second of the lens groups
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH