If {HEAD ~ the output} of {TAIL ~ the imager saturates}, the shutter gain will never be engaged and particular bright scenes will be lost 
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If { HEAD ~ the output } of { TAIL ~ the imager saturates } , the shutter gain will never be engaged and particular bright scenes will be lost
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH