Canon recently has registered several new RF mount superzoom lens patents, they are RF 28-280mm f/2.8, RF 28-135mm f/4, RF 24-170mm f/4. The RF 28-280mm f/2.8 lens should be a very large and heavy lens if it is real.
Canon RF 28-280mm f/2.8:
- Focal length: 27.81mm 146.83mm 269.60mm
- F-number: 2.88 2.88 2.88
- Half angle of view: 34.09° 8.38° 4.59°
- Image height: 18.82mm 21.64mm 21.64mm
- Total lens length: 340.47mm 340.47mm 340.47mm
- BF: 32.97mm 32.97mm 32.97mm
Canon RF 28-135mm f/4:
- Focal length: 28.84mm 80.09mm 135.75mm
- F-number: 4.12 4.12 4.12
- Half angle of view: 33.13° 15.12° 9.06°
- Image height: 18.82mm 21.64mm 21.64mm
- Total lens length: 167.97mm 167.97mm 167.97mm
- BF: 27.78mm 27.78mm 27.78mm
Canon RF 24-170mm f/4:
- Focal length: 24.72mm 99.78mm 166.47mm
- F-number: 4.12 4.12 4.12
- Half angle of view: 37.29° 12.23° 7.40°
- Image height: 18.82mm 21.64mm 21.64mm
- Total lens length: 236.70mm 236.70mm 236.70mm
- BF: 23.98mm 23.98mm 23.98mm
Via: Canon News, Source: USPTO