In the second embodiment of the present imaging lens system, the on axis spacing between the first lens element 300 and the second lens element 310 is T12, {TAIL ~ the focal length} of the imaging lens system is {HEAD ~ f}, and they satisfy the relation: ×100=1.28 
In the second embodiment of the present imaging lens system , the on axis spacing between the first lens element 300 and the second lens element 310 is T12 , { TAIL ~ the focal length } of the imaging lens system is { HEAD ~ f } , and they satisfy the relation : ×100=1.28
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH