Canon has just filed a new patent for EF 200-600mm F4.5-5.6L USM lens. This is a new full frame zoom lens for Canon DSLRs.

Detail translated by Google:

• Patent Publication No. 2015-212724
  • Published 2015.11.26
  • Filing date 2014.5.1
• Example
  • Focal length 200.00 340.00 600.00
  • F-number 3.00
  • Half angle (in degrees)  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

Source: EG

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