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