A patent showing a Canon 10-120mm f/1.8 lens for a 1″ sensor has become public. Such an optical formula may be a remanent from the XC10 development or could appear in a future video camera product. I'm sure a lot of people would have rather seen an f/1.8 lens in the XC10, instead of the f/2.8 lens it comes with.

Patent Publication No. 2015-75523

  • Published 2015.4.20
  • Filing date 2013.10.7

Example 1

  • Zoom ratio 11.54
  • Focal length 10.21 56.31 117.88
  • F number 1.87 1.79 1.78
  • Half angle (in degrees) 38.07 8.09 3.88
  • Image height 8.00
  • Overall length of the lens 555.0
  • BF 16.56

Canon patents

  • 5-group zoom of positive and negative TadashiTadashiTadashi
  • Inner focus (part of the first group)
  • Inner zoom
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