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Canon Patent: RF 85mm f/1.2 (without BR elements) And RF 50mm f/1.2

Canon Patent: RF 85mm F/1.2 (without BR Elements) And RF 50mm F/1.2
Image from the patent literature

Here is a newly spotted Canon patent.

Canon patent application P2020-38295A describes the optical formulas for two RF lenses, a 85mm f/1.2 without the Blue Spectrum Refractive (BR) elements, and a 50mm f1.2.

RF 85mm f/1.2 lens

  • Focal length: 83.20 mm
  • F number: 1.24
  • Half angle of view: 14.58
  • Image height: 21.64 mm
  • Lens length: 121.31 mm
  • Back focus: 14.08 mm

RF 50mm f/1.2 lens:

  • Focal length: 51.10 mm
  • F number: 1.25
  • Half angle of view: 22.95
  • Image height: 21.64 mm
  • Lens length: 111.01 mm
  • Back focus: 14.60 mm

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

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