Canon appears to be working on a fast portrait zoom for the RF mount, with the fastest of the bunch being an RF 50-80mm f/1.1. The number of lens elements in the lens design is remarkable.
Canon RF 50-80mm f/1.1:
- Focal length: 51.50mm 64.17mm 82.52mm
- F-number: 1.13 1.13 1.13
- Half angle of view: 22.79° – 18.63° – 14.69°
- Total lens length 220.20mm 225.05mm 224.20mm
- BF 6.51mm 6.53mm 8.64mm
Also included in this patent are optical formulas for a RF 50-80mm f/1.2, RF 50-80mm f/1.4, RF 50-80mm f/1.6 and a RF 50-80mm f/1.8.
We expect some new lens designs to be announced in the first half of 2020. Keep in mind, just because there's a patent, doesn't mean we'll actually see this as a product.