From Tamron:
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.
Affected model
Firmware version
Improvements
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.
How to Update
The lens firmware can be updated using cameras that support this lens firmware update.
How to Check your Lens Firmware Version
From your camera’s menu screen, please select "Setup" then "Display version."
Download: Tamron 28-75mm F/2.8 Di III RXD (Model A036) Firmware v.2
From Tamron:
Dear users and potential purchasers of Tamron interchangeable lenses.
Thank you for using Tamron products.
We wish to notify you that we will perform updating of the firmware for our SP 90mm F/2.8 Di MACRO1:1 VC USD (Model F017) for Canon.
Affected Models
Serial number
Firmware update will not be required for lenses with these serial numbers.
Firmware Improvements
How to update the firmware
From Tamron:
Notice about compatibility between Canon EOS 5D Mark IV and Tamron lens products
Dear users and potential purchasers of Tamron interchangeable lenses.
Thank you for using Tamron products.
Dear users and potential purchasers of Tamron interchangeable lenses for Canon.
Thank you for using Tamron products.
We wish to notify you that the AF functions of the following interchangeable lenses for Canon, which have been produced before May 11th, 2015 and have not updated firmware when there were the firmware update service announcements below, do not function in Live View mode when used on the EOS 5D Mark IV which went on sale on September 8th, 2016 in Japan.
*Please see the below links for the previous firmware update service announcements regarding the EOS Rebel T6s/EOS 760D (EOS 8000D) / the EOS Rebel T6i/ EOS 750D (EOS Kiss X8i), the EOS 5Ds / the EOS 5DsR, the EOS 80D, EOS-1D X Mark II, and the firmware update service for SP 150-600mm F/5-6.3 Di VC USD (Model A011) for panning shot.
We sincerely apologize to all users and potential purchasers for any inconvenience the issue may cause.
Affected models
Interchangeable lenses for Canon, which has been produced before May 11th, 2015
Serial numbers which have produced after May 11th, 2015
Firmware update will not be required for those lenses (serial numbers).
For those who require firmware update service, please contact your local Tamron distributor for more details.
From Tamron:
A notice regarding compatibility issue with the EOS 80D and availability of firmware update service
Dear users and potential purchasers of Tamron interchangeable lenses for Canon.
Thank you for using Tamron products.
We wish to notify you that the AF functions of the following interchangeable lenses for Canon, which have been produced before May 11st, 2015 and have not updated firmware when there were the firmware update service announcements below, do not function in Live View mode when used on the EOS 80D which went on sale on March 25th, 2016 in Japan.
*Please see the below links for the previous firmware update service announcements regarding the EOS Rebel T6s/EOS 760D (EOS 8000D) / the EOS Rebel T6i/ EOS 750D (EOS Kiss X8i), the EOS 5Ds / the EOS 5DsR, and the firmware update service for SP 150-600mm F/5-6.3 Di VC USD (Model A011) for panning shot.
http://www.tamron.co.jp/en/news/release_2015/0508_3.html
http://www.tamron.co.jp/en/news/release_2015/0508.html
http://www.tamron.co.jp/en/news/release_2015/0622_3.html
We sincerely apologize to all users and potential purchasers for any inconvenience the issue may cause.
Affected Models
Interchangeable lenses for Canon, which has been produced before May 11st
Serial numbers which have produced after May 11st, 2015
Firmware update will not be required for those lenses (serial numbers).
Please check the serial number from the links below.
For those who require firmware update service, please contact your local Tamron distributor for more details.