Canon Patents

Patent: Canon EF-S 15-53mm f/2.8-4

This sort of lens could signal an improvement on entry level kit glass, as an optical formula for an EF-S 15-53mm f/2.8-4 has appeared.

Patent Publication No. 2015-152765 (Google Translated)

  • Published 2015.8.24
  • Filing date 2014.2.14
  • Focal length 15.40 20.46 51.00mm
  • Fno 2.80 3.00 4.30
  • Half angle of view ω 41.57 33.73 14.99 °
  • Image height 13.66mm
  • Overall length of the lens 119.65 123.99 149.53mm
  • BF 35.93 38.66 50.56mm

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