Canon Patents Another Extreme Lens

Canon has been quite aggressive in the development of RF mount lenses, releasing some extreme designs, such as the RF 28-70mm f/2 L USM and the RF 85mm f/1.2 L USM. They seem to have no intentions of slowing down, as another boundary-pushing design has emerged in a recent patent. The patent features multiple f/1.8 lenses, the most impressive of which is a 150mm f/1.8 design. Such a lens would be an extremely wide aperture for such a focal length and would start to encroach on the sort of designs we see in 200mm f/2 lenses.