Canon Patent For 35mm f/1.4, 85mm f/1.2 and 70-200mm f/2.8 Lenses for Full Frame Cameras
Hi Lows Note spotted a Canon patent application (2019-45631A) describing optical formulas for a 35mm f/1.4 and 85mm f/1.2 for full frame DSLRs, and for a 70-200mm f/2.8 for full…