{TAIL ~ A camera} 1, in which the electromagnet of {HEAD ~ the detection means} is used also to control the shutter closing action 
{ TAIL ~ A camera } 1 , in which the electromagnet of { HEAD ~ the detection means } is used also to control the shutter closing action
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH