New Patent: Canon EF 600mm F4 DO IS USM

canon-ef-600mm-f4-do-is-usm-patent

Canon has just filed a new patent for EF 600mm F4 DO IS USM lens. This new telephoto DO lens is rumored to be announced in late 2017.

Detail translated by Google:

  • Patent Publication No. 2016-200685
    • Published 2016.12.1
    • Filing date 2015.4.9
  • Example
    • Focal length 585.00
    • F-number 4.12
    • Angle of view 2.12
    • Image height  21.64
    • Overall length of the lens 335.32
    • BF  66.92

Source: EGAMI

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