The development of the Tamron 20-40mm f/2.8 was announced here, and the first leaked image is here. Now asobinet has come across the patent, which you can see translated below: Overview [Public number] P2022131391 [Publication date] 2022-09-07 [Title of Invention] Zoom lens and imaging device [Application date] 2021-02-26 [Applicant] [Identification number] 000133227 [Name] Tamron Co. […]
