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Canon patent for 28-500mm F2.8-4 zoom lens (for Powershot 1″ sensor series?)

28-500mm F2.8-4

Canon patent for an optical formula that appears to be for a 1″ sensor, and for a 28-500mm F2.8-4 lens. Canon makes Powershot cameras with an 1″ sensor, the patent may point to a future super-zoom Powershot camera.

  • Patent Publication No. 2016-99548
    • Published 2016.5.30
    • Filing date 2014.11.25
  • Example 1
    • Zoom ratio 17.50
    • Focal length 9.76 104.00 170.79
    • F-number 2.88 3.77 3.90
    • Half angle of view (degrees) 36.48 4.51 2.75
    • The image height 7.22 8.20 8.20
    • The total lens length 196.17 196.17 196.17
    • BF 7.33 7.33 7.33
[via Egami]
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