JP 2020-173349 A↗2020Assignee: Canon Inc.Inventors: Maki Yokoya, Tomohiro InoCANON RF 600mm f/11 IS STM— 10 ELEMENTS / 7 GROUPS, 600mm f/11 (MARKETED)CANON RF 800mm f/11 IS STM— 11 ELEMENTS / 8 GROUPS, 800mm f/11 (MARKETED)
US 2025/0251576 A1↗2025Assignee: Canon Inc.Inventors: Tomohiro InoCANON RF 50mm f/1.4 L VCM— 14 elements / 11 groups (15 material entries incl. resin cap), f = 48.50 mm patent / 50 mm marketed