Tamron released the new firmware update for the 28-75mm FE lens. This update improves the following issues in video shooting mode:
1．Autofocusing operation and loss of focus
2．Flicker on peripheral parts of the image when zooming
Download page: tamron.jp/en/support/a036_firmware.html
Tamron 28-75mm FE lens at BHphoto, Amazon, BuyDig, FocusCamera and Adorama. In Europe at Amazon DE and WexUK.