New Patent: Canon EF-S 15-53mm F/2.8-4 Lens

Canon EF-S 100-300mm F4-5.6 IS lens

Canon has just filed a new patent of EF-S 15-53mm F/2.8-4 Lens. This new lens is a standard zoom lens for Canon APS-C DSLRs. In this range, there is only Canon EF-S 17-55mm f/2.8 IS USM lens.

Patent Publication No. 2015-152765

  • Published 2015.8.24
  • Filing date 2014.2.14

Example 1

  • 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 119.65 123.99 149.53mm
  • BF 35.93 38.66 50.56mm

Source: EG

Read More Canon Lens Patent

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