New Patent: Canon 30mm f/2.8 DO Full Frame Mirrorless Lens

Canon 30mm F2.8 DO full-frame mirrorless lens patent

Canon has just filed a new lens patent for 30mm F2.8 DO IS lens. This is another new full-frame mirrorless lens for the upcoming Canon full frame mirrorless camera. In last December, Canon already filed the new 50mm F3.5 Macro IS Full-Frame Mirrorless lens patent.

Detail translated by Google:

  • Patent Publication No. 2016-102851
    • Published 2016.6.2
    • Filing date 2014.11.27
  • Example
    • Zoom ratio 1.00
    • Focal length 31.35
    • F-number 2.86
    • Angle of view 34.61
    • Image height 21.64
    • Overall length of the lens 85.29
    • BF 29.99
  • Canon patent
    • Positive ShiboTadashi
    • Diffractive optical element (the second group of aperture stop image side)
    • Correct axial chromatic aberration and lateral chromatic aberration of the near-infrared light

Source: EGI

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