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Thursday, August 6, 2015

New Canon Patent For EF 24-120mm IS Lens Design




Egami has uncovered a new Canon patent showing a EF 24-120mm f/3.5-5.6 IS lens design. You will recall, there was another Canon patent earlier for the EF 24-105mm f/3.5-5.6 IS lens.
The two patents may be related.

Patent Publication No. 2015-132637

  •     Published 2015.7.23
  •     Filing date 2014.1.9

Example 4

  •     Zoom ratio 4.76
  •     Focal length 24.73 55.13 117.60
  •     Fno. 3.60 4.91 5.83
  •     Half angle of 41.18 21.43 10.42
  •     Image height 21.64
  •     Lens length 149.01 170.43 200.01
  •     BF 38.67 61.21 74.86

Canon patents

  •     Anti-vibration (Group 6)

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