A patent for a full-frame Tamron 17-50mm f/4 VC lens was found on IP Force. Applicant: Tamron Co., Ltd. Publication number: P2023092730 Application number: P 2021207918 Publication date: 2023-07-04Title of invention: Optical system and imaging device Kind Code: A1 A zoom lens and an imaging device are provided which are compact and lightweight and have … Continue reading Tamron 17-50mm f/4 VC Patent Found