A new patent for an EF 58mm f1.4 optical formula has appeared. Nikon currently has a Nikkor 58mm f/1.4G. Could we be getting closer to a replacement for the EF 50mm f/1.4?

Patent Publication No. 2015-172611 (Google Translated)

  • Published 2015.10.1
  • Filing date 2014.3.11
  • Focal length 57.99
  • F-number 1.45
  • Half angle (in degrees) 20.46
  • Image height 21.64
  • Overall length of the lens 117.64
  • BF 38.23
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