Canon Patent for 11-24mm f/4 Lens

2014_10286_fig01

Egami (translated) spotted a patent filed by Canon for an 11-24mm f/4 wide-angle lens for full-frame sensors.

  • Patent Publication No. 2014-10286
    • Publication date 2014.1.20
    • Filing date 2012.6.29
  • Example 1
    • Zoom ratio 2.06
    • Focal length f = 11.30-18.00-23.30mm
    • Fno. 4.10
    • Half angle ω = 62.42-50.24-42.88mm
    • Image height Y = 21.64mm
    • 172.19-161.28-162.86mm overall length of the lens
    • BF 38.82-52.31-63.15mm
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