Canon patent application 20200174234 (US) discusses optical formulas for two telephoto lenses for the RF mount: 100-600mm f/4.5-7.1 and 120-700mm f/4.5-8.
RF 100-600mm f/4.5-7.1:
- Focal Length: 103-00mm
- F-Number: 4.6-6.8
- Half Angle of View: 11.86° – 4.98° – 2.07°
- Image Height: 21.64mm
- Lens Length: 241mm-331mm
- Backfocus: 17mm-97mm
RF 120-700mm f/4.5-8:
- Focal Length: 123-700mm
- F-Number: 4.6-8.0
- Half Angle of View: 9.98° – 4.22° – 1.77°
- Image Height: 21.64mm
- Lens Length: 246mm-370mm
- Backfocus: 14mm-107mm
Source: CanonNews Via: CanonWatch.