Dear users and potential purchasers of Tamron interchangeable lenses.
Thank you for using Tamron products.
We are pleased to inform you that the firmware update for the 28-75mm F/2.8 Di III RXD (Model A036) for Sony E-mount, full-frame mirrorless cameras, is now available. The firmware update is available through Sony E-mount camera bodies.
Please review the information below.
28-75mm F/2.8 Di III RXD (Model A036)
This update improves known issues for autofocus with Sony E-mount mirrorless cameras,
when the range of focus search distance is broad, in video recording mode.
Tap for more details. >> http://www.tamron.jp/en/support/popup/a036.html
How to Update
The lens firmware can be updated using cameras that support this lens firmware update.
Tap for more details. >> http://www.tamron.jp/en/support/a036_firmware.html
How to Check your Lens Firmware Version
From your camera’s menu screen please, select “Setup” then “Display version.”
Alternative, you may visit to the website;