
Three new lenses could be added to the Canon RF mount lineup including an 85mm f/1.4, 75mm f/1.4 and 100mm f/1.4. A newly-filed patent shows plans for a series of fast aperture primes that will sit nicely between the super wide (and expensive) f/1.2 variants and the more standard f/1.8 or f/2.8.
We’ve come to expect extremely high optical quality from the best Canon RF lenses and according to the patent, the same is true here. They have been described as a system that ‘provides excellent correction”, and “capable of satisfactorily correcting aberrations over a wide range of object distances” all while maintaining a compact form.