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Canon Working On Lighter and Smaller APS-C Kit Lenses, Canon Patent

Canon Working On Lighter And Smaller APS-C Kit Lenses, Canon Patent

Canon patent application 2019-109266 (Japan) discusses optical formulas for an 18-55mm and a 15-45mm lens for APS-C DSLRs.

  • Focal length 18.55 34.00 53.35 
  • F number 3.55 4.60 5.85 field 
  • Angle 36.36 21.89 14.36 
  • Image height 13.66 13.66 13.66 
  • Lens total length 97.50 113.37 129.36 
  • BF 35.49 47.49 61.37 
  • Focal length 15.45 33.30 43.65 
  • F-number 3.55 5.24 5.85 17.38 
  • Image height 13.66 13.66 13.66 
  • Lens total length 93.50 114.50 131.22 
  • BF 35.50 55.37 61.61 

The patent application also describes ways and methods to make those lenses smaller and lighter. For sure a welcome feature.

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

Source: Canon News

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