A new ultrawide zoom lens for APS-C EOS M cameras has appeared. This may be a replacement for the excellent EF-M 11-22mm f/4-5.6 IS STM. The only knock against that lens is that it’s not wide enough. Image Stabilization is not part of the patent, which is a notable omission.
Japan Patent Application 2017-219644
- Focal distance: 9.27 13.35 17.70
- F number: 4.12 4.84 5.57
- Field angle: 55.84 45.67 37.66
- Image height: 13.66 13.66 13.66
- Whole length of the lens: 61.48 56.10 54.43
- BF: 10.29 13.62 16.52
Canon News thinks that the primary goal of the design is to keep the focus group as small as possible to speed up AF on mirrorless cameras and for video.