Dear Tamron product users and potential purchasers.
Thank you for your interest in Tamron products.
We would like to announce that we found an issue with our 20mm Di III OSD M1:2 (Model F050), 24mm Di III OSD M1:2 (Model F051), 35mm Di III OSD M1:2 (Model F053) for SONY mirrorless cameras.
The focus mode may switch from AF to MF during video recording with the SONY α7IV.
We are currently working on the cause of the issue and will inform you of updated information on our website.
We sincerely apologize to all users and potential purchasers for any inconvenience this issue may cause.