New Lens Patent for EF 35mm f/1.4 L II USM

ef 35mm 14l

Canon has filed another new lens patent for the upcoming EF 35mm f/1.4L II USM lens. The EF 35mm f/1.4 II USM lens is rumored to be announced in late Summer, 2015, will be the next new L lens after EF 11-24mm f/4L USM.

See patent below:

ef 35 14 ii usm


Explanation and self-interpretation of the patent literature

  • Patent Publication No. 2015-72370
    • Published 2015.4.16
    • Filing date 2013.10.3
  • Example 1
    • Focal length f = 35.47mm
    • Fno. 1.45
    • Half angle of view ω = 31.38 °
    • Image height Y = 21.64mm
    • Lens length 141.37mm
    • BF 39.37mm
    • Positive, positive ShiboTadashi

via: EG

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