Canon recently filed patents for three new lenses that are supposed to be the fast mirrorless zoom lens: These are the lens patents:
- 15-45 1.8-3.5
- 15-45 2.0-4.0
- 15-45 2.8-5.0
However, detail to these lens patent are too short to explain the whole staircase. But Canonnews says that it may be the first canon lens patent that shows distortions will be controlled very effectively.