By cutting off {HEAD ~ this infra red range} of {TAIL ~ the spectrum}, the sensitivity of the camera device for infra red radiation is reduced 
of
By cutting off { HEAD ~ this infra red range } of { TAIL ~ the spectrum } , the sensitivity of the camera device for infra red radiation is reduced
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH