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Canon patent for new 50mm f/1.4 lens

50mm f/1.4

Canon filed a patent for a 50mm f/1.4 lens. The patent literature refers to AF speed improvements.

The current EF 50mm f/1.4 was released back in 1993. A replacement could be on its way. It’s likely we have the patent for Canon’s next EF 50mm f/1.4 lens.

  • Patent Publication No. 2015-138121
    • Published 2015.7.30
    • Filing date 2014.1.22
  • Example 1
    • Focal length 49.10
    • F number 1.45
    • Half angle (in degrees) 23.78
    • Image height 21.64
    • Overall length of the lens 100.16
    • BF 38.10
  • Canon patents
    • Positive ShiboTadashi
    • Inner focus (part of the first group)
[via Egami]
Canon EF 50mm f/1.4
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