Update: Guess I got a bit overexcited on this. The patent literature refers to 2 optical formulas for full-frame and 2 for Powershot class of cameras. While it is possible that Canon may build such a lens for FF, an application for Powershot is much more likely. However, it’s a matter of fact that Canon works on such crazy ideas.

Canon patent for an EF 40-800mm F4.5-5.6 lens. It’s suggested this Canon patent could lead to a new EF 40-800mm F4.5-5.6 lens to be announced before the Olympic Games in Tokyo 2020, and, well, I think this is entirely possible so I rate it CW2 CW3.

• Patent Publication No. 2016-128846
  • Published 2016.7.14
  • Filing date 2015.1.9
• Example 1
  • Zoom ratio 19.42
  • Focal length 41.09 92.80 152.20 225.00 797.99
  • F-number 4.67 4.66 4.65 4.67 5.71
  • Angle of view 27.79 13.13 8.10 5.50 1.55
  • Image height 21.65
  • Overall length of the lens 489.32
  • BF 39.28
• Canon patent
  • Inner zoom

[via Egami]