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Canon Patent: Macro Lenses For EOS R System (85mm, 95mm, 100mm, all f/2.8)

Canon Patent

And now let’s go for one more Canon patent for an RF mount lens.

Canon patent application 2020-91334A (spotted by Hi Lows Note) discusses optical formulas for three macro lens for the RF mount.

RF 85mm F2.8 1:1 MACRO

  • Focal length: 84.92 mm
  • F number: 2.92
  • Half angle of view: 14.29
  • Image height: 21.64 mm
  • Lens length: 120.23 mm
  • Back focus: 10.60 mm

RF 95mm F2.8 1:1 MACRO

  • Focal length: 94.82 mm
  • F number: 2.92
  • Half angle of view: 12.85
  • Image height: 21.64 mm
  • Lens length: 124.00 mm
  • Back focus: 14.11 mm

RF 100mm F2.8 1:1 MACRO

  • Focal length: 99.75 mm
  • F number: 2.92
  • Half angle of view: 12.24
  • Image height: 21.64 mm
  • Lens length: 169.97 mm
  • Back focus: 14.00 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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