Canon Patents Designs for RF 50mm f/1.4 and RF 35mm f/1.4 Lenses
November 5, 2020
A new patent filed by Canon Japan shows multiple optical formulas for an RF 50mm f/1.4 and f/1.8 design as well as a new RF 35mm f/1.4. The patents deal with increasing focusing speed when using lenses with large diameter elements.
All the designs filed use a modern optical design for the front and rear lenses, with the rear lens elements on each shown to push right up against the back of the…