Such an arrangement of optical elements can effectively correct the aberrations to improve {HEAD ~ image quality} of the system, reduce the total track length of {TAIL ~ the imaging lens system} and achieve a wide field of view 
Such an arrangement of optical elements can effectively correct the aberrations to improve { HEAD ~ image quality } of the system , reduce the total track length of { TAIL ~ the imaging lens system } and achieve a wide field of view
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH