An amount of defocusing performed by the defocusing mechanism and {TAIL ~ a gain adjustment} by the gain adjustment device are dependent on a content of {HEAD ~ the composite signal} 
An amount of defocusing performed by the defocusing mechanism and { TAIL ~ a gain adjustment } by the gain adjustment device are dependent on a content of { HEAD ~ the composite signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD