Here is a new Canon patent application for two zoom lenses. Canon patent application 2024160458…
Canon patent for 28-200mm f/3.5-5.6 lens
Canon patent for a 28-200mm f/3.5-5.6 lens. Not sure where to put this optical formula. Looks like a budget super-zoom.
- Patent Publication No. 2015-172612
- Published 2015.10.1
- Filing date 2014.3.11
- Example 1
- 1
- Zoom ratio 6.68
- Focal length 28.90 51.17 193.10
- F-number 3.63 4.39 5.88
- Half angle (in degrees) 36.82 22.92 6.39
- Image height 21.64 21.64 21.64
- Overall length of the lens 132.70 149.90 182.70
- BF 39.40 49.73 66.13,