Notice about update of TAMRON Lenses for Sony E mount

20-40mm F/2.8 Di III VXD (Model A062) for Sony E mount
50-400mm F/4.5-6.3 Di III VC VXD (Model A067) for Sony E mount

Firmware Update Notice

Thank you very much for your continued support of Tamron products.

On March 21, 2024, we announced on our website of a phenomenon found with our 20-40mm F/2.8 Di III VXD (Model A062) for Sony E mount and 50-400mm F/4.5-6.3 Di III VC VXD (Model A067) for Sony E mount lenses. We are pleased to announce that the symptom seen on these lenses can now be corrected by updating the firmware.

Models Concerned

• 20-40mm F/2.8 Di III VXD (Model A062) for Sony E mount


• 50-400mm F/4.5-6.3 Di III VC VXD (Model A067) for Sony E mount

Improved Phenomenon

When the camera's AF assist function is set to “Off” and the focus ring is turned the focus position started shift.

About the Firmware Update

Customers can update the firmware of their lenses themselves using TAMRON Lens Utility™ software.

※For more information, please click here.

Or, we can take custody of your lens and update the firmware at no charge.

※For more information, please click here.

For any inquiries, please contact us from the following

https://www.tamron.com/global/contact/