According to a new patent, Canon may be working on a flurry of new telephoto primes for RF full-frame cameras – all designed to mix a compact design with bright apertures. The telephoto primes in question aren’t existing lenses in the RF ecosystem, meaning that they could still be under development.
Patent P2026067609 was published on the Japan Patent Office platform on April 21 and contains details of three high-performance telephoto primes: a 130mm f/1.8, 300mm f/2.8, and 500mm f/5.6, along with an 85mm f/1.4. While the designs outlined in the patent don't seem to be fundamentally different to existing Canon lenses, they do look to be optimized for compactness.
