Canon has just file a new patent for EF-M 9-18mm F3.5-4.5 STM lens. This is an ultra wide angle lens for Canon mirrorless cameras.
There are a lot of EOS M patents happening this year. It seems at least one higher end EOS M camera will be announced and released in 2016.
Detail translated by Google:
- Patent Publication No. 2016-54371
- Published 2016.4.14
- Filing date 2014.9.3
- Example
- Zoom ratio 1.90
- Focal length 9.22 14.05 17.50
- F-number 3.39 4.04 4.63
- Half angle (in degrees) 53.07 44.12 37.91
- Image height 12.27 13.63 13.63
- Overall length of the lens 89.68 83.60 86.84
- BF 14.22 15.78 16.00
- Upon correction of the distortion, providing a constraint on stretching amount at each image height
- Properly set the curve shape of the distortion aberration
Source: EGAMI
Read More Canon Lens Patent