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Canon Patent For Superfast Prime Lenses For The EOS R System

Canon Patent

If we believe the sheer number of Canon patent applications for RF lenses we must think Canon takes their EOS R full frame mirrorless system very seriously.

Canon patent application 2019-197095A (Japan) discusses the optical formulas for three very fast prime lenses for the RF mount. The lenses are 18 mm f/1, 18mm f/1.2, and 25mm f/1.2. 

  • Focal length: 18.51mm
  • F no: 1.24
  • ω : 49.45
  • Image height: 21.64mm
  • Lens length: 129.00mm
  • Back focus: 16.40mm
  • Focal length: 24.59mm
  • F no: 1.24
  • ω : 41.35
  • Image height: 21.64mm
  • Lens length: 129.01mm
  • Back focus: 13.57mm
  • Focal length: 18.50mm
  • F no: 1.03
  • ω : 49.47
  • Image height: 21.64mm
  • Lens length: 150.00mm
  • Back focus: 4.99mm

Don’t expect these lenses to be announced anytime soon.

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

[via Hi Lows Note]

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