Canon Patent: RF 70-300mm f/3.5-5.6 & RF 100-500mm f/5.6-6.4 Lenses (EOS R)
Here is a new Canon patent application, and again it is about lenses for the RF mount. Canon patent application 2020-64176 discusses optical formulas for an RF 70-300mm f/3.5-5.6 and…