Canon Patent Reveals Possible RF 300mm f/2.0L and RF 200mm f/1.8L Lenses A recent patent application by Canon (JP-2025-179579) has surfaced, detailing optical formulas for two incredibly fast super-telephoto prime lenses: a 300mm f/2.0 and a 200mm f/1.8. These specs will be familiar to long-time Canon shooters. The EF 200mm f/1.8L USM, affectionately known as […]