The latest Canon EOS RF mirrorless lens patents (part 4)


The latest Canon EOS RF mirrorless lens patents (see previously reported patents here):


Canon RF 100mm f/2.8 2x macro full-frame mirrorless lens patent (two different versions described in the patent):

  • Focal length: 103.00 mm
  • F-number: 2.92
  • Half angle of view: 11.86
  • Image height: 21.64 mm
  • Lens length: 167.36 mm
  • Back focus: 15.14 mm


Canon RF 70-300mm f/4-5.6 full-frame mirrorless lens patent (source):

  • Zoom ratio: 4.11
  • Focal length: 71.40~136.34~293.23 mm
  • F-number: 3.94~4.72~5.83
  • Half angle of view: 16.86~9.02~4.22
  • Image height: 21.64 mm
  • Lens length: 165.00~202.03~235.83 mm
  • Back focus: 12.14~31.67~72.45 mm


Canon 16-40mm and 14-40mm f/4 UWA RF zoom lens patents (source).


Canon RF 24-70mm f//2.8 and RF 28-85mm f/2.0-2.8 lens patents for the EOS R mirrorless system (source).


Canon also has a patent application for eye-controlled focus for mirrorless cameras (source).


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