New Patent: Canon EF 70-200mm f/2.8 DO Lens

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Canon has filed a new patent for EF 70-200mm f/2.8 DO (Diffractive Optics) lens, which is expected to be announced before 2020 Olympics games.

Take a look at the patent details below translated by Google.

  • Patent Publication No. 2016-80877
    • Published 2016.5.16
    • Filing date 2014.10.17
  • Example 1
    • Zoom ratio 2.69
    • Focal length 72.15 134.00 193.98
    • F-number 2.91 2.91 2.91
    • Angle of view 16.69 9.17 6.36
    • Image height 21.64
    • The total lens length 223.50 223.50 223.50
    • BF 45.35 45.35 45.35
The Current Canon EF 70-200mm f/2.8L IS II USM Lens

via: Egami

Read more: Canon Rumors