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Canon disclosed new patent of EF 28-560mm f/2.8-5.6 lens

28-560mm

Canon revealed a new patent of EF 28-560mm f/2.8-5.6 lens, which is going to be the replacement of the current EF 28-300 F/3.5-5.6L IS.  It is a 20x optical zoom lens and the lens for Full frame DSLR.

Patent Publication No. 2016-80973 (Google Translated)

  • Published 2016.5.16
  • Filing date 2014.10.21
  • Zoom ratio 18.78
  • Focal length 28.80 139.49 540.91
  • F-number 2.88 4.77 5.88
  • Half angle of view (degrees) 36.91 8.82 2.29
  • Image height 21.64
  • The total lens length 298.13 341.13 398.13
  • BF 44.99 76.94 116.58
Via- Egami
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