From Tamron:
Dear users and potential purchasers of Tamron interchangeable lenses.
Thank you for using Tamron products and for your continuous support.
We would like to announce that we have clarified compatibility in general operations(*1) of following Tamron Di & Di II lenses on Canon EOS RP, which was newly released on March 14, 2019, with Canon "Mount Adapter EF-EOS R".
(*1) Defined to work on existing DSLR cameras
Compatible models (for Canon) for general operations (*2)
(*2) With the latest F/W version. Regarding the F/W update, please visit here.
(*3) Regarding the update service, please visit here.
Lens Update Service Information
For other models, once we confirm the compatibility with Canon EOS R series and Canon adapter, we will announce the models sequentially at our support website. We are sorry to keep you waiting, and also ask for your understanding of the situation.
From Tamron:
Dear users and potential purchasers of Tamron interchangeable lenses.
Thank you for using Tamron products and for your continuous support.
We would like to announce that we have clarified compatibility in general operations(*1) of following Tamron Di & Di II lenses on Canon EOS R, which was newly released on October 25, 2018, with Canon Mount Adapter(*2).
Compatible models in general operations(*3)
(*1) Defined to work on existing DSLR cameras
(*2) Canon "Mount Adapter EF-EOS R"
(*3) With the latest version of lens firmware
About other Tamron models, we will make a further announcement of the compatibility at our support web page once the operation tests are completed.
Thank you for your patience and understanding in this matter.
From Tamron:
Dear Tamron product users and potential purchasers.
Thank you for your interest in Tamron products.
We would like to announce that we discovered some issues with the auto focus of our new lens, 28-75mm F/2.8 Di III RXD (Model A036) for Sony E-mount, 35mm full-frame mirrorless cameras, released on May 24, 2018. The issues occur primarily when using the camera in video recording mode.
Rest assured, we are evaluating the cause of the error and for the solution to this matter. We expect this issue to be resolved very shortly and we will release a firmware update at that time.
Regarding the firmware updating process, please be assured that the process is accomplished directly through the Sony camera and supported by the Sony firmware updating function. As soon as the process is finalized, we will explain the process in detail on our website.
We sincerely apologize to all users and potential purchasers for any inconvenience this issue may cause.