US 10,545,321 B2↗2020Assignee: Tamron Co., Ltd.Inventors: Yoshito Iwasawa, Jun TakahashiTAMRON SP 150-600mm f/5-6.3 Di VC USD (A011)— 20 ELEMENTS / 13 GROUPS, PATENT ZOOM POINTS 152.1633-582.5200 mm