Here is my comment

來源: 於 2012-01-31 10:19:18 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

For F3.5 lens, the diffraction limited MTF at 35L/mm should be 0.91. Your curve shous a MTF range from 0.18-0.69 at 35L/mm, still good for a commerical lens.