#Y2021 #摄影  [Phase Fresnel: From Wildlife Photography to Portraiture](https://www.nikonusa.com/en/learn-and-explore/a/ideas-and-inspiration/phase-fresnel-from-wildlife-photography-to-portraiture.html#:~:text=A%20Lighter%20Lens%20to%20Ease%20Your%20Photography&text=In%20simplest%20terms%2C%20the%20Phase,in%20a%20much%20smaller%20footprint)