Patent: Lower cost RF mount prime and zoom lenses, including an RF 16-35mm f/4

Craig Blair
1 Min Read

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Canon obviously needs some “affordable” prime and zoom lenses for the RF mount, and a few JPO patent applications seem to suggest we're getting closer to that being a reality.

Canon RF 20mm f/2

  • Focal length: 20.50
  • F number: 2.06
  • Half angle of view: 46.54
  • Image height: 21.64
  • Lens length: 90.13
  • Back focus: 13.50

Canon RF 35mm f/1.8

  • Focal length: 35.60
  • F number: 1.85
  • Half angle of view: 31.22
  • Image height: 21.64
  • Lens length: 81.87
  • Back focus: 13.49

Canon RF 35mm f/2

  • Focal length: 35.91
  • F number: 2.06
  • Half angle of view: 31.07
  • Image height: 21.64
  • Lens length: 50.50
  • Back focus: 15.05

Canon RF 35mm f/2.8

  • Focal length: 35.70
  • F number: 2.88
  • Half angle of view: 31.22
  • Image height: 21.64
  • Lens length: 60.00
  • Back focus: 13.15

Canon RF 45mm f/2.8

  • Focal length: 44.70
  • F number: 2.85
  • Half angle of view: 25.83
  • Image height: 21.64
  • Lens length: 62.63
  • Back focus: 13.13

Canon RF 16-35mm f/4

  • Focal length: 16.48 24.02 33.75
  • F number: 4.12
  • Half angle of view: 52.70 42.01 32.66
  • Image height: 21.64
  • Lens length: 117.64 109.16 110.13
  • Back focus: 11.50 19.17 29.63
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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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