New Patents: Canon EF-S 30mm F/1.8, EF 50mm F/1.8 and 18-105mm F/4-5.6

Canon Patent EF-S 30mm F1.8 and EF 50mm F1.8Northlight-images posted several new patents for Canon Lenses: EF-S 30mm F1.8, EF 50mm F1.8 and 18-105mm f/4-5.6 With Built-in Telconverter.

Canon EF 50mm F1.8 lens patent:

  • Focal length 51.60mm
  • F number 1.85
  • Field angle 22.75
  • Image Height 21.64mm
  • Lens total length 84.19mm
  • BF 39.08mm

Canon EF-S 30mm F1.8 Patent:

  • Focal length 30.90mm
  • F number 1.85
  • Field angle 23.85mm
  • Image height 13.66mm
  • Lens total length 84.50mm
  • BF 35.50mm

Canon 18-105Canon 18-105mm f/4-5.6 Patent:

  • Focal length 18.40 37.44 104.0
  • Aperture 4.00 4.64 5.89
  • Half angle of view ω (degree) 36.59 20.04 7.48
  • Image height 13.66 13.66 13.66 (APS-C)
  • Lens total length 149.30 165.77 191.31

Read More Canon Lens Patent

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