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Canon EF 10mm f/2.8L USM patent (not fish-eye)

EF 10mm f/2.8L

Canon filed a patent for an EF 10mm f/2.8L USM lens. The interesting fact: this is not a fish-eye lens!

  • Patent Publication No. 2015-102620
    • Published 2015.6.4
    • Filing date 2013.11.22
  • Example 3
    • Focal length f = 10.30mm
    • Fno. 2.88
    • Half angle of view ω = 64.54 °
    • Image height 21.64mm
    • Lens length 124.58mm
    • BF 38.00mm
[via Egami]
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