Nikon Nikkor 105mm f2.5 lens macro factor A7 06514 Nikkor 105mm no-tube shortest focus 1000px A7 06517 Nikkor 105mm 10mm-tube shortest focus 1000px A7 06519 Nikkor 105mm 16mm-tube shortest focus 1000px A7 06521 Nikkor 105mm 26mm-tube shortest focus 1000px