Canon Patent for EF 200-600mm f/4.5-5.6L USM Lens

Canon filed a new patent in Japan. The new patent describes the EF 200-600mm f/4.5-5.6L USM lens which looks like to be a new super-telephoto zoom lens for full-frame sensor Canon DSLRs.

From the patent application we can say the upcoming full-frame lens will be a L-grade model. EF 200-600mm f/4.5-5.6L USM lens will feature USM (UltraSonic Motor) which means that the lens will autofocus faster than standard models.

The lens looks like a budget superzoom lens for Canon full-frame DSLRs. See the patent details below.

Canon EF 200-600mm f/4.5-5.6L USM Lens Patent

canon-patent-for-ef-200-600mm-f4-5-5-6l-usm-lens

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

  • Patent Publication No. 2015-212724
    • Published 2015.11.26
    • Filing date 2014.5.1
  • Example 1
    • Zoom ratio 3.00
    • Focal length 200.00 340.00 600.00
    • F-number 4.60 4.60 5.20
    • Angle of view 6.18 3.64 2.07
    • Image height 21.65 21.65 21.65
    • Overall length of the lens 355.16 355.16 355.16
    • BF 65.16 65.16 65.16

via: Egami