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Canon Patent For RF 24-80mm f/4 Lens For EOS R System

Canon Patent For RF 24-80mm F/4 Lens For EOS R System

Canon patent application 2019-191607, spotted by Canon News, discusses optical formulas for a Canon RF 24-80mm f/4 lens for the Canon EOS R system.

  • Focal length 24.72 48.09 82.45
  • F number 4.12 4.12 4.12
  • Half angle of view ( 41.19 24.22 14.70
  • Image height 21.64 21.64 21.64
  • Total lens length 119.50 134.52 149.55
  • BF 13.50 18.71 22.73

The Canon patent also discusses the optical formula for an RF 24-130mm f/4 lens.

  • Focal length 24.72 63.46 131.00
  • F-number 4.12 4.12 4.12
  • Half angle of view (degree) 41.19 18.83 9.38
  • Image height 21.64 21.64 21.64
  • Total lens length 137.50 168.92 200.33
  • BF 13.50 24.03 28.27

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

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