Patent adds one more evidence the Zeiss Batis 18mm has been designed by Tamron
Zeiss Batis desing on the left – Tamron lens design patent on the right I found a newly published Tamron patent describing a Full Frame 18mm f/2. 8 lens design. And as you can see from the comparison I made above it really looks like Zeiss licensed that design for their Batis 18mm FE lens. sonyalpharumors.com »