Further, the five lens system can be implemented as part of a fixed focus imaging system, or in {HEAD ~ conjunction} with {TAIL ~ a variable focus optical magnification imaging system} 
Further , the five lens system can be implemented as part of a fixed focus imaging system , or in { HEAD ~ conjunction } with { TAIL ~ a variable focus optical magnification imaging system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL