Nikon 50mm f/1.2 Sharpness Comparison - Ken Rockwell
Analysis top. Intro Images Analysis Technika Recommendations. Center. As expected, the exotic aspherical Nikon 58mm f/1.2 Noct-NIKKOR (1977-1997) is the best in the center wide-open, and the newest Nikon 50mm f/1.4 AF-S is almost as good.. Nikon's fastest current lens, the 50mm f/1.2 AI-s, isn't as good, and the 50mm f/1.4 AF is the worst.. As stopped down, the differences go away.