Cの200-400のMTF
http://cweb.canon.jp/ef/lineup/tele-zoom/ef200-400-f4l/spec.html

旧200-400のMTF
http://www.nikon-image.com/products/lens/nikkor/af-s_nikkor_200-400mm_f4g_ed_vr_2/spec.html

今回の180-400のMTF
http://www.nikon-image.com/products/lens/nikkor/af-s_nikkor_180-400mm_f4e_tc14_fl_ed_vr/spec.html

うーん（白目）