New Patents: Canon RF 18mm F1.8, 20mm F1.4 and 24mm F1.8 lens

Canon has applied for a patent for a wide-angle lens (18mm, 20mm, 21mm, 24mm, 28mm in the examples) for  RF mount.

  • Example 1 (18mm F1.8)
    Focal length 18.54
    F number 1.85
    Half angle of view (°) 49.41
    Image height 21.64
    Lens total length 107.66
    BF 14.09
  • Example 2 (24mm F1.8)
    Focal length 23.83
    F number 1.85
    Half angle of view (°) 42.24
    Image height 21.64
    Lens total length 104.66
    BF 15.90
  • Example 4 (20 mm F1.4)
    Focal length 20.48
    F number 1.44
    Half angle of view (°) 46.56
    Image height 21.64
    Lens total length 124.66
    BF 13.16
  • Example 5 (21mm F1.8)
    Focal length 21.36
    F number 1.85
    Half angle of view (°) 45.37
    Image height 21.64
    Lens total length 105.66
    BF 14.88
  • Example 8 (28 mm F1.8)
    Focal length 28.08
    F number 1.85
    Half angle of view (°) 37.61
    Image height 21.64
    Lens total length 92.66
    BF 12.16

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