Patent: Canon EF-S 16-80mm

Patent: Canon EF-S 16-80mm

Canon has registered a new patent for a 16-80mm lens for APS-C DSLR cameras, the EF-S 16-80mm f/2-5.6, look out for this lens being bundled with some of Canon’s higher end APS-C cameras in the future. Check out the patent details below as translated by google:

  • Patent Publication No. 2016-51137
    • Published 2016.4.11
    • Filing date 2014.9.2
  • Example 1
    • Zoom ratio 4.71
    • Focal length 16.09 41.83 75.78
    • F-number 2.07 5.15 6.00
    • Half angle of view (degrees) 36.26 18.01 10.17
    • Image height 11.80 13.60 13.60
    • The total lens length 100.68 110.04 120.89
    • BF 15.19 27.94 26.84

What’s strange about this patent is the f/6 aperture at the tele end of the zoom scale in the patent. It’s possible that this will turn out to to be f/5.6 because f/6 doesn’t exist on a camera, and f/6.3 would be incredibly slow. This would make it a replacement for the EF-S 17-85 f/2.8-5.6. Perhaps even the f/2 will turn out to be f/2.8 as well… it’s tough to judge these patents sometimes!

Source: thenewcamera